http://invisible-island.net/xterm/


xterm(1)


NAME

       xterm - terminal emulator for X


SYNOPSIS

       xterm [-toolkitoption ...] [-option ...] [shell]


DESCRIPTION

       The  xterm  program is a terminal emulator for the X Window System.  It
       provides DEC VT102/VT220 and selected features from higher-level termi-
       nals  such  as  VT320/VT420/VT520  (VTxxx).  It also provides Tektronix
       4014 emulation for programs that cannot use the window system directly.
       If the underlying operating system supports terminal resizing capabili-
       ties (for example, the SIGWINCH signal in systems derived from 4.3BSD),
       xterm  will use the facilities to notify programs running in the window
       whenever it is resized.

       The VTxxx and Tektronix 4014 terminals each have their  own  window  so
       that  you can edit text in one and look at graphics in the other at the
       same time.  To maintain the correct aspect ratio  (height/width),  Tek-
       tronix  graphics  will  be  restricted to the largest box with a 4014's
       aspect ratio that will fit in the window.  This box is located  in  the
       upper left area of the window.

       Although both windows may be displayed at the same time, one of them is
       considered the "active" window for receiving keyboard input and  termi-
       nal  output.   This  is  the window that contains the text cursor.  The
       active window can be chosen through escape sequences, the "VT  Options"
       menu  in  the VTxxx window, and the "Tek Options" menu in the 4014 win-
       dow.


EMULATIONS

       The VT102 emulation is fairly complete, but does  not  support  autore-
       peat.   Double-size  characters  are  displayed  properly  if your font
       server supports scalable fonts.  The VT220 emulation does  not  support
       soft fonts, it is otherwise complete.

       Terminal  database (terminfo (5) or termcap (5)) entries that work with
       xterm include

              an optional platform-specific entry ("xterm-new"),
              "xterm",
              "vt102",
              "vt100",
              "ansi" and
              "dumb"

       Xterm automatically searches the terminal database in  this  order  for
       these  entries  and  then sets the "TERM" and the "TERMCAP" environment
       variables.  You may also use "vt220",  but must set the terminal emula-
       tion  level  with  the  decTerminalID resource.  On most systems, xterm
       will use the terminfo database.  Some older systems use termcap.   (The
       "TERMCAP"  environment variable is not set if xterm is linked against a
       terminfo library, since the requisite information is  not  provided  by
       the termcap emulation of terminfo libraries).

       Many  of  the special xterm features may be modified under program con-
       trol through a set of escape  sequences  different  from  the  standard
       VT102 escape sequences.  (See the Xterm Control Sequences document.)

       The  Tektronix  4014 emulation is also fairly good.  It supports 12-bit
       graphics addressing, scaled to the window size.   Four  different  font
       sizes and five different lines types are supported.  There is no write-
       through or defocused mode support.  The  Tektronix  text  and  graphics
       commands  are recorded internally by xterm and may be written to a file
       by sending the COPY escape sequence (or through the Tektronix menu; see
       below).   The name of the file will be "COPYyyyy-MM-dd.hh:mm:ss", where
       yyyy, MM, dd, hh, mm and ss are the year, month, day, hour, minute  and
       second  when  the COPY was performed (the file is created in the direc-
       tory xterm is started in, or the home directory for a login xterm).

       Not all of the features described in this manual are necessarily avail-
       able  in  this version of xterm.  Some (e.g., the non-VT220 extensions)
       are available only if they were compiled in, though the most  commonly-
       used are in the default configuration.


OTHER FEATURES

       Xterm  automatically highlights the text cursor when the pointer enters
       the window (selected) and unhighlights it when the pointer  leaves  the
       window  (unselected).  If the window is the focus window, then the text
       cursor is highlighted no matter where the pointer is.

       In VT102 mode, there are escape sequences to activate and deactivate an
       alternate  screen buffer, which is the same size as the display area of
       the window.  When activated, the current screen is saved  and  replaced
       with the alternate screen.  Saving of lines scrolled off the top of the
       window is disabled until the normal screen is restored.  The usual ter-
       minal description for xterm allows the visual editor vi(1) to switch to
       the alternate screen for editing and to restore the screen on exit.   A
       popup  menu  entry  makes  it  simple  to switch between the normal and
       alternate screens for cut and paste.

       In either VT102 or Tektronix mode, there are escape sequences to change
       the name of the windows.  Additionally, in VT102 mode, xterm implements
       the window-manipulation control sequences from dtterm, such as resizing
       the window, setting its location on the screen.

       Xterm allows character-based applications to receive mouse events (cur-
       rently button-press and release events, and  button-motion  events)  as
       keyboard control sequences.  See Xterm Control Sequences for details.


OPTIONS

       The xterm terminal emulator accepts the standard X Toolkit command line
       options as well as many application-specific options.   If  the  option
       begins  with  a  `+'  instead  of  a `-', the option is restored to its
       default value.

       -version
               This causes xterm to print a version  number  to  the  standard
               output, and then exit.

       -help   This causes xterm to print out a verbose message describing its
               options, one per line.  The message is written to the  standard
               output.  After printing the message, xterm exits.  Xterm gener-
               ates this message, sorting it and noting whether a "-option" or
               a  "+option"  turns  the feature on or off, since some features
               historically have been one or the  other.   Xterm  generates  a
               concise  help  message  (multiple  options  per  line)  when an
               unknown option is used, e.g.,

                   xterm -z

               If the logic for a particular option such  as  logging  is  not
               compiled  into xterm, the help text for that option also is not
               displayed by the -help option.

       Most of the xterm options are actually parsed by the X  Toolkit,  which
       sets  resource  values.   Xterm  provides the X Toolkit with a table of
       options.  A few of these are marked, telling the X  Toolkit  to  ignore
       them (-help, -version, -class, -e, and -into).  After the X Toolkit has
       parsed the command-line parameters, it removes those which it  handles,
       leaving the specially-marked parameters for xterm to handle.

       The  -version  and  -help  options are interpreted even if xterm cannot
       open the display, and are useful for testing and configuration scripts.
       Along  with -class, they are checked before other options.  To do this,
       xterm has its own (much simpler) argument parser, along with a table of
       the X Toolkit's built-in list of options.

       Relying  upon  the X Toolkit to parse the options and associated values
       has the advantages of  simplicity  and  good  integration  with  the  X
       resource mechanism.  There are a few drawbacks

       o   Xterm cannot tell easily whether a resource value was set by one of
           the external resource- or application-defaults files, or if it  was
           set  through the -xrm option or via some directly relevant command-
           line option.  Xterm sees only the end-result: a value supplied when
           creating its widgets.

       o   Xterm does not know the order in which particular options and items
           in resource files are evaluated.  Rather, it sees all of the values
           for  a  given  widget  at  the  same  time.  In the design of these
           options, some are deemed more important,  and  can  override  other
           options.

           The  X  Toolkit  uses  patterns  (constants and wildcards) to match
           resources.  Once a particular pattern has been used,  it  will  not
           modify  it.   To  override a given setting, a more-specific pattern
           must be used, e.g., replacing "*" with ".".   Some  poorly-designed
           resource  files  are too specific to allow the command-line options
           to affect the relevant widget values.

       o   In a few cases, the X Toolkit combines its standard options in ways
           which  do  not  work  well with xterm.  This happens with the color
           (-fg, -B) and reverse (-rv) options.  Xterm makes a special case of
           these and adjusts its sense of "reverse" to lessen user surprise.

       One parameter (after all options) may be given.  That overrides xterm's
       built-in choice of shell program:

       o   If the parameter is not a relative path, i.e., beginning with  "./"
           or  "../",  xterm looks for the file in the user's PATH.  In either
           case, this check fails if xterm cannot construct an absolute path.

       o   If that check fails (or if no such parameter is given), xterm  next
           checks the "SHELL" variable.  If that specifies an executable file,
           xterm will attempt to  start  that.   However,  xterm  additionally
           checks if it is a valid shell, and will unset "SHELL" if it is not.

       o   If "SHELL" is not set to an executable file, xterm tries to use the
           shell program specified in the  user's  password  file  entry.   As
           before, xterm verifies if this is a valid shell.

       o   Finally, if the password file entry does not specify a valid shell,
           xterm uses /bin/sh.

       The -e option cannot be used with this  parameter  since  it  uses  all
       parameters following the option.

       Xterm  validates  shell  programs by finding their pathname in the text
       file /etc/shells.  It treats the environment variable "SHELL" specially
       because  (like  "TERM"), xterm both reads and updates the variable, and
       because the program started by xterm is not necessarily a shell.

       The other options are used to control the appearance and behavior.  Not
       all options are necessarily configured into your copy of xterm:

       -132    Normally,  the  VT102  DECCOLM  escape  sequence  that switches
               between 80 and 132 column mode is ignored.  This option  causes
               the  DECCOLM  escape  sequence  to be recognized, and the xterm
               window will resize appropriately.

       -ah     This option indicates that xterm should  always  highlight  the
               text cursor.  By default, xterm will display a hollow text cur-
               sor whenever the focus is lost or the pointer leaves  the  win-
               dow.

       +ah     This  option  indicates  that xterm should do text cursor high-
               lighting based on focus.

       -ai     This option disables active icon support if  that  feature  was
               compiled  into  xterm.  This is equivalent to setting the vt100
               resource activeIcon to "false".

       +ai     This option enables active icon support  if  that  feature  was
               compiled  into  xterm.  This is equivalent to setting the vt100
               resource activeIcon to "true".

       -aw     This option indicates that auto-wraparound should  be  allowed.
               This  allows  the cursor to automatically wrap to the beginning
               of the next line when it is at the rightmost position of a line
               and text is output.

       +aw     This  option  indicates  that  auto-wraparound  should  not  be
               allowed.

       -b number
               This option specifies the size of the inner  border  (the  dis-
               tance  between  the outer edge of the characters and the window
               border) in pixels.  That is the vt100 internalBorder  resource.
               The default is "2".

       +bc     turn  off text cursor blinking.  This overrides the cursorBlink
               resource.

       -bc     turn on text cursor blinking.  This overrides  the  cursorBlink
               resource.

       -bcf milliseconds
               set the amount of time text cursor is off when blinking via the
               cursorOffTime resource.

       -bcn milliseconds
               set the amount of time text cursor is on when blinking via  the
               cursorOnTime resource.

       -bdc    Set  the  vt100  resource colorBDMode to "false", disabling the
               display of characters with bold attribute as color.

       +bdc    Set the vt100 resource colorBDMode to "true", enabling the dis-
               play  of  characters  with  bold attribute as color rather than
               bold.

       -cb     Set the vt100 resource cutToBeginningOfLine to "false".

       +cb     Set the vt100 resource cutToBeginningOfLine to "true".

       -cc characterclassrange:value[,...]
               This sets classes indicated by the given ranges  for  using  in
               selecting  by  words.   See  the  section  specifying character
               classes and discussion of the charClass resource.

       -cjk_width
               Set the cjkWidth resource to "true".  When turned  on,  charac-
               ters  with  East  Asian Ambiguous (A) category in UTR 11 have a
               column width of 2.  Otherwise, they have a column width  of  1.
               This may be useful for some legacy CJK text terminal-based pro-
               grams assuming box drawings and others to have a  column  width
               of  2.  It also should be turned on when you specify a TrueType
               CJK double-width (bi-width/monospace) font either with  -fa  at
               the command line or faceName resource.  The default is "false"

       +cjk_width
               Reset the cjkWidth resource.

       -class string
               This  option  allows  you  to  override xterm's resource class.
               Normally it is "XTerm", but can be set to another class such as
               "UXTerm" to override selected resources.

       -cm     This  option  disables  recognition of ANSI color-change escape
               sequences.  It sets the colorMode resource to "false".

       +cm     This option enables recognition  of  ANSI  color-change  escape
               sequences.  This is the same as the vt100 resource colorMode.

       -cn     This  option indicates that newlines should not be cut in line-
               mode selections.  It sets the cutNewline resource to "false".

       +cn     This option indicates that newlines should be cut in  line-mode
               selections.  It sets the cutNewline resource to "true".

       -cr color
               This  option  specifies  the color to use for text cursor.  The
               default is to use the same foreground color that  is  used  for
               text.  It sets the cursorColor resource according to the param-
               eter.

       -cu     This option indicates that xterm should work around  a  bug  in
               the more(1) program that causes it to incorrectly display lines
               that are exactly the width of the window and are followed by  a
               line beginning with a tab (the leading tabs are not displayed).
               This option is so named because it was originally thought to be
               a bug in the curses(3x) cursor motion package.

       +cu     This  option  indicates  that  xterm should not work around the
               more(1) bug mentioned above.

       -dc     This option disables the escape sequence to change dynamic col-
               ors:  the vt100 foreground and background colors, its text cur-
               sor color, the pointer cursor foreground and background colors,
               the  Tektronix  emulator  foreground and background colors, its
               text cursor color and highlight color.   The  option  sets  the
               dynamicColors option to "false".

       +dc     This  option enables the escape sequence to change dynamic col-
               ors.  The option sets the dynamicColors option to "true".

       -e program [ arguments ... ]
               This option specifies the program (and its command  line  argu-
               ments)  to be run in the xterm window.  It also sets the window
               title and icon name to be the basename  of  the  program  being
               executed  if  neither  -T nor -n are given on the command line.
               This must be the last option on the command line.

       -en encoding
               This option determines the encoding on which  xterm  runs.   It
               sets  the locale resource.  Encodings other than UTF-8 are sup-
               ported by using luit.  The -lc option should be used instead of
               -en for systems with locale support.

       -fb font
               This  option  specifies  a font to be used when displaying bold
               text.  It sets the boldFont resource.

               This font must be the same height and width as the normal font,
               otherwise  it  is  ignored.   If only one of the normal or bold
               fonts is specified, it will be used as the normal font and  the
               bold font will be produced by overstriking this font.

               See   also   the  discussion  of  boldMode  and  alwaysBoldMode
               resources.

       -fa pattern
               This option sets  the  pattern  for  fonts  selected  from  the
               FreeType  library if support for that library was compiled into
               xterm.  This corresponds to the faceName resource.  When a  CJK
               double-width  font  is  specified, you also need to turn on the
               cjkWidth resource.

               See also the renderFont resource, which combines with  this  to
               determine whether FreeType fonts are initially active.

       -fbb    This option indicates that xterm should compare normal and bold
               fonts bounding boxes to ensure they are  compatible.   It  sets
               the freeBoldBox resource to "false".

       +fbb    This  option indicates that xterm should not compare normal and
               bold fonts bounding boxes to ensure they  are  compatible.   It
               sets the freeBoldBox resource to "true".

       -fbx    This  option  indicates  that  xterm should not assume that the
               normal and bold fonts have VT100 line-drawing  characters.   If
               any  are  missing, xterm will draw the characters directly.  It
               sets the forceBoxChars resource to "false".

       +fbx    This option indicates that xterm should assume that the  normal
               and bold fonts have VT100 line-drawing characters.  It sets the
               forceBoxChars resource to "true".

       -fd pattern
               This option sets the pattern for  double-width  fonts  selected
               from  the FreeType library if support for that library was com-
               piled into xterm.  This corresponds to  the  faceNameDoublesize
               resource.

       -fi font
               This  option sets the font for active icons if that feature was
               compiled into xterm.

               See also the discussion of the iconFont resource.

       -fs size
               This option sets the pointsize  for  fonts  selected  from  the
               FreeType  library if support for that library was compiled into
               xterm.  This corresponds to the faceSize resource.

       -fullscreen
               This option indicates that xterm should ask the window  manager
               to let it use the full-screen for display, e.g., without window
               decorations.  It sets the fullscreen resource to "true".

       +fullscreen
               This option indicates that xterm should not ask the window man-
               ager  to  let  it use the full-screen for display.  It sets the
               fullscreen resource to "false".

       -fw font
               This option specifies the font to be used for  displaying  wide
               text.   By default, it will attempt to use a font twice as wide
               as the font that will be used to draw normal text.  If no  dou-
               ble-width  font  is found, it will improvise, by stretching the
               normal font.  This corresponds to the wideFont resource.

       -fwb font
               This option specifies the font to be used for  displaying  bold
               wide  text.  By default, it will attempt to use a font twice as
               wide as the font that will be used to draw bold  text.   If  no
               double-width  font  is  found, it will improvise, by stretching
               the bold font.  This corresponds to the wideBoldFont resource.

       -fx font
               This option specifies the font to be used  for  displaying  the
               preedit string in the "OverTheSpot" input method.

               See also the discussion of the ximFont resource.

       -hc color
               (see -selbg).

       -hf     This  option indicates that HP Function Key escape codes should
               be generated for function keys.   It  sets  the  hpFunctionKeys
               resource to "true".

       +hf     This  option indicates that HP Function Key escape codes should
               not be generated for function keys.  It sets the hpFunctionKeys
               resource to "false".

       -hm     Tells  xterm  to  use  highlightTextColor and highlightColor to
               override the reversed foreground/background colors in a  selec-
               tion.  It sets the highlightColorMode resource to "true".

       +hm     Tells xterm not to use highlightTextColor and highlightColor to
               override the reversed foreground/background colors in a  selec-
               tion.  It sets the highlightColorMode resource to "false".

       -hold   Turn  on  the  hold  resource, i.e., xterm will not immediately
               destroy its window when the shell command completes.   It  will
               wait  until you use the window manager to destroy/kill the win-
               dow, or if you use the menu entries that send a  signal,  e.g.,
               HUP or KILL.

       +hold   Turn  off  the  hold  resource,  i.e.,  xterm  will immediately
               destroy its window when the shell command completes.

       -ie     Turn on the ptyInitialErase resource, i.e., use the pseudo-ter-
               minal's sense of the stty erase value.

       +ie     Turn off the ptyInitialErase resource, i.e., set the stty erase
               value using the kb string from the termcap entry  as  a  refer-
               ence, if available.

       -im     Turn  on the useInsertMode resource, which forces use of insert
               mode by adding appropriate entries to the  TERMCAP  environment
               variable.   (This  option  is  ignored on most systems, because
               TERMCAP is not used).

       +im     Turn off the useInsertMode resource.

       -into windowId
               Given an X window identifier (an integer, which can be hexadec-
               imal,  octal  or  decimal  according  to whether it begins with
               "0x", "0" or neither), xterm will reparent its top-level  shell
               widget  to  that  window.   This  is used to embed xterm within
               other applications.

               For instance, there are scripts for Tcl/Tk and Gtk which can be
               used  to  demonstrate  the feature.  When using Gtk, there is a
               limitation  of  that  toolkit  which  requires   that   xterm's
               allowSendEvents resource is enabled.

       -itc    Set  the  vt100  resource colorITMode to "false", disabling the
               display of characters with italic attribute as color.

       +itc    Set the vt100 resource colorITMode to "true", enabling the dis-
               play  of  characters with italic attribute as color rather than
               italic.

       -j      This option indicates that xterm should do jump scrolling.   It
               corresponds  to  the  jumpScroll  resource.   Normally, text is
               scrolled one line at a time; this option allows xterm  to  move
               multiple  lines  at  a  time  so  that  it does not fall as far
               behind.  Its use is strongly recommended since it  makes  xterm
               much  faster  when scanning through large amounts of text.  The
               VT100 escape sequences for enabling and disabling smooth scroll
               as  well as the "VT Options" menu can be used to turn this fea-
               ture on or off.

       +j      This option indicates that xterm should not do jump scrolling.

       -k8     This  option  sets   the   allowC1Printable   resource.    When
               allowC1Printable is set, xterm overrides the mapping of C1 con-
               trol characters (code 128-159) to treat them as printable.

       +k8     This option resets the allowC1Printable resource.

       -kt keyboardtype
               This option sets the keyboardType  resource.   Possible  values
               include:  "unknown",  "default", "hp", "sco", "sun", "tcap" and
               "vt220".

               The value "unknown", causes the corresponding  resource  to  be
               ignored.

               The   value  "default",  suppresses  the  associated  resources
               hpFunctionKeys, scoFunctionKeys, sunFunctionKeys, tcapFunction-
               Keys and sunKeyboard, using the Sun/PC keyboard layout.

       -l      Turn  logging  on.   Normally  logging is not supported, due to
               security concerns.  Some versions of  xterm  may  have  logging
               enabled.   The  logfile  is written to the directory from which
               xterm is invoked.  The filename is generated, of the form

                    XtermLog.XXXXXX

               or

                    Xterm.log.hostname.yyyy.mm.dd.hh.mm.ss.XXXXXX

               depending on how xterm was built.

       +l      Turn logging off.

       -lc     Turn on support of various encodings according  to  the  users'
               locale  setting,  i.e.,  LC_ALL,  LC_CTYPE, or LANG environment
               variables.  This is achieved by turning on UTF-8  mode  and  by
               invoking  luit  for  conversion  between  locale  encodings and
               UTF-8.  (luit is not invoked in UTF-8  locales.)   This  corre-
               sponds to the locale resource.

               The  actual list of encodings which are supported is determined
               by luit.  Consult the luit manual page for further details.

               See also the discussion of the -u8 option which supports  UTF-8
               locales.

       +lc     Turn  off  support  of automatic selection of locale encodings.
               Conventional 8bit mode or, in UTF-8 locales or with -u8 option,
               UTF-8 mode will be used.

       -lcc path
               File  name  for the encoding converter from/to locale encodings
               and UTF-8 which is used with -lc  option  or  locale  resource.
               This corresponds to the localeFilter resource.

       -leftbar
               Force  scrollbar to the left side of VT100 screen.  This is the
               default, unless you have set the rightScrollBar resource.

       -lf filename
               Specify the log-filename.  See the -l option.

       -ls     This option indicates that the shell that  is  started  in  the
               xterm  window  will be a login shell (i.e., the first character
               of argv[0] will be a dash, indicating  to  the  shell  that  it
               should read the user's .login or .profile).

               The  -ls  flag and the loginShell resource are ignored if -e is
               also given, because xterm does not know how to make  the  shell
               start  the  given  command  after whatever it does when it is a
               login shell - the user's shell of choice need not be  a  Bourne
               shell  after all.  Also, xterm -e is supposed to provide a con-
               sistent functionality for other applications that need to start
               text-mode  programs  in  a  window,  and if loginShell were not
               ignored, the result of ~/.profile might interfere with that.

               If you do want the effect of -ls and -e simultaneously, you may
               get away with something like

                   xterm -e /bin/bash -l -c "my command here"

               Finally,  -ls  is  not completely ignored, because xterm -ls -e
               does write a /var/log/wtmp entry  (if  configured  to  do  so),
               whereas xterm -e does not.

       -maximized
               This  option indicates that xterm should ask the window manager
               to maximize its layout on startup.   This  corresponds  to  the
               maximized resource.

               Maximizing  is not the reverse of iconifying; it is possible to
               do both with certain window managers.

       +maximized
               This option indicates that xterm should ask the window  manager
               to not maximize its layout on startup.

       +ls     This option indicates that the shell that is started should not
               be a login shell (i.e., it will be a normal "subshell").

       -mb     This option indicates that xterm should ring a margin bell when
               the user types near the right end of a line.

       +mb     This option indicates that margin bell should not be rung.

       -mc milliseconds
               This  option  specifies  the  maximum  time between multi-click
               selections.

       -mesg   Turn off the messages resource, i.e., disallow write access  to
               the terminal.

       +mesg   Turn  on the messages resource, i.e., allow write access to the
               terminal.

       -mk_width
               Set the mkWidth resource to "true".  This  makes  xterm  use  a
               built-in  version of the wide-character width calculation.  The
               default is "false"

       +mk_width
               Reset the mkWidth resource.

       -ms color
               This option specifies the color to be used for the pointer cur-
               sor.   The  default  is to use the foreground color.  This sets
               the pointerColor resource.

       -nb number
               This option specifies the number of characters from  the  right
               end  of a line at which the margin bell, if enabled, will ring.
               The default is "10".

       -nul    This option disables the display of underlining.

       +nul    This option enables the display of underlining.

       -pc     This option enables the PC-style use of bold colors (see  bold-
               Colors resource).

       +pc     This option disables the PC-style use of bold colors.

       -pob    This option indicates that the window should be raised whenever
               a Control-G is received.

       +pob    This option indicates that the  window  should  not  be  raised
               whenever a Control-G is received.

       -report-colors
               Print a report to the standard output showing information about
               colors as  xterm  allocates  them.   This  corresponds  to  the
               reportColors resource.

       -report-fonts
               Print a report to the standard output showing information about
               fonts which are loaded.  This corresponds  to  the  reportFonts
               resource.

       -rightbar
               Force scrollbar to the right side of VT100 screen.

       -rvc    This  option  disables  the  display of characters with reverse
               attribute as color.

       +rvc    This option enables the  display  of  characters  with  reverse
               attribute as color.

       -rw     This   option   indicates  that  reverse-wraparound  should  be
               allowed.  This allows the cursor to back up from  the  leftmost
               column  of  one  line  to  the rightmost column of the previous
               line.  This is very useful for editing long shell command lines
               and  is  encouraged.  This option can be turned on and off from
               the "VT Options" menu.

       +rw     This option indicates that  reverse-wraparound  should  not  be
               allowed.

       -s      This  option  indicates  that  xterm may scroll asynchronously,
               meaning that the screen does not have to be kept completely  up
               to  date while scrolling.  This allows xterm to run faster when
               network latencies are very high and is  typically  useful  when
               running across a very large internet or many gateways.

       +s      This option indicates that xterm should scroll synchronously.

       -samename
               Does  not  send  title  and  icon name change requests when the
               request would have no effect: the name is  not  changed.   This
               has the advantage of preventing flicker and the disadvantage of
               requiring an extra round trip to the server  to  find  out  the
               previous value.  In practice this should never be a problem.

       +samename
               Always send title and icon name change requests.

       -sb     This  option  indicates  that  some  number  of  lines that are
               scrolled off the top of the window should be saved and  that  a
               scrollbar  should  be  displayed  so  that  those  lines can be
               viewed.  This option may be turned on  and  off  from  the  "VT
               Options" menu.

       +sb     This option indicates that a scrollbar should not be displayed.

       -selbg color
               This  option  specifies  the color to use for the background of
               selected text.  If not specified, reverse video is  used.   See
               the discussion of the highlightColor resource.

       -selfg color
               This  option  specifies the color to use for selected text.  If
               not specified, reverse video is used.  See  the  discussion  of
               the highlightTextColor resource.

       -sf     This option indicates that Sun Function Key escape codes should
               be generated for function keys.

       +sf     This option indicates that the standard escape codes should  be
               generated for function keys.

       -sh number
               scale  line-height values by the given number.  See the discus-
               sion of the scaleHeight resource.

       -si     This option indicates that output to a window should not  auto-
               matically  reposition the screen to the bottom of the scrolling
               region.  This option can be turned on  and  off  from  the  "VT
               Options" menu.

       +si     This  option  indicates that output to a window should cause it
               to scroll to the bottom.

       -sk     This option indicates that  pressing  a  key  while  using  the
               scrollbar  to  review  previous  lines of text should cause the
               window to be repositioned automatically in the normal  position
               at the bottom of the scroll region.

       +sk     This  option  indicates  that  pressing  a  key while using the
               scrollbar should not cause the window to be repositioned.

       -sl number
               This option specifies the number of lines  to  save  that  have
               been  scrolled  off the top of the screen.  This corresponds to
               the saveLines resource.  The default is "64".

       -sm     This option, corresponding to the  sessionMgt  resource,  indi-
               cates that xterm should set up session manager callbacks.

       +sm     This option indicates that xterm should not set up session man-
               ager callbacks.

       -sp     This option indicates that Sun/PC keyboard should  be  assumed,
               providing  mapping  for  keypad "+" to ",", and CTRL-F1 to F13,
               CTRL-F2 to F14, etc.

       +sp     This option indicates that the standard escape codes should  be
               generated for keypad and function keys.

       -t      This  option  indicates  that  xterm  should start in Tektronix
               mode, rather than in VT102 mode.   Switching  between  the  two
               windows is done using the "Options" menus.

               Terminal  database  (terminfo  (5) or termcap (5)) entries that
               work with xterm are:

               "tek4014",
               "tek4015",
               "tek4012",
               "tek4013",
               "tek4010", and
               "dumb".

               xterm automatically searches  the  terminal  database  in  this
               order for these entries and then sets the "TERM" and the "TERM-
               CAP" environment variables.

       +t      This option indicates that xterm should start in VT102 mode.

       -tb     This option, corresponding to the toolBar  resource,  indicates
               that  xterm should display a toolbar (or menubar) at the top of
               its window.  The buttons in the toolbar correspond to the popup
               menus, e.g., control/left/mouse for "Main Options".

       +tb     This option indicates that xterm should not set up a toolbar.

       -ti term_id
               Specify  the  name used by xterm to select the correct response
               to terminal ID queries.  It also specifies the emulation level,
               used  to  determine  the  type  of  response  to  a  DA control
               sequence.  Valid values  include  vt52,  vt100,  vt101,  vt102,
               vt220,  and  vt240  (the  "vt"  is  optional).   The default is
               "vt420".  The term_id argument specifies  the  terminal  ID  to
               use.  (This is the same as the decTerminalID resource).

       -tm string
               This  option  specifies  a  series of terminal setting keywords
               followed by the characters that should be bound to those  func-
               tions,  similar  to  the  stty program.  The keywords and their
               values are described in detail in the ttyModes resource.

       -tn name
               This option specifies the name of the terminal type to  be  set
               in  the  TERM  environment  variable.   It  corresponds  to the
               termName resource.  This terminal type must exist in the termi-
               nal  database  (termcap  or terminfo, depending on how xterm is
               built) and should have li# and co# entries.   If  the  terminal
               type  is  not  found,  xterm  uses  the  built-in list "xterm",
               "vt102", etc.

       -u8     This option sets the utf8 resource.  When utf8  is  set,  xterm
               interprets  incoming  data  as  UTF-8.  This sets the wideChars
               resource as a side-effect, but  the  UTF-8  mode  set  by  this
               option  prevents  it  from  being turned off.  If you must turn
               UTF-8 encoding on and off, use the -wc  option  or  the  corre-
               sponding wideChars resource, rather than the -u8 option.

               This option and the utf8 resource are overridden by the -lc and
               -en options and locale resource.  That is, if  xterm  has  been
               compiled  to  support  luit,  and  the  locale  resource is not
               "false" this option is ignored.  We  recommend  using  the  -lc
               option  or  the  "locale: true"  resource in UTF-8 locales when
               your operating system supports locale, or -en UTF-8  option  or
               the  "locale: UTF-8"  resource  when your operating system does
               not support locale.

       +u8     This option resets the utf8 resource.

       -uc     This option makes the cursor underlined instead of a box.

       +uc     This option makes the cursor a box instead of underlined.

       -ulc    This option disables the display of characters  with  underline
               attribute as color rather than with underlining.

       +ulc    This  option  enables  the display of characters with underline
               attribute as color rather than with underlining.

       -ulit   This option, corresponding to the italicULMode  resource,  dis-
               ables  the  display  of  characters with underline attribute as
               italics rather than with underlining.

       +ulit   This  option,  corresponding  to  the  italicULMode   resource,
               enables  the  display of characters with underline attribute as
               italics rather than with underlining.

       -ut     This option indicates that xterm should not write a record into
               the the system utmp log file.

       +ut     This option indicates that xterm should write a record into the
               system utmp log file.

       -vb     This option indicates that a visual bell is preferred  over  an
               audible  one.   Instead of ringing the terminal bell whenever a
               Control-G is received, the window will be flashed.

       +vb     This option indicates that a visual bell should not be used.

       -wc     This option sets the wideChars resource.

               When wideChars is set, xterm maintains internal structures  for
               16-bit  characters.   If xterm is not started in UTF-8 mode (or
               if this resource is not  set),  initially  it  maintains  those
               structures  to  support  8-bit  characters.  Xterm can later be
               switched, using a menu entry or control sequence, causing it to
               reallocate those structures to support 16-bit characters.

               The default is "false".

       +wc     This option resets the wideChars resource.

       -wf     This  option indicates that xterm should wait for the window to
               be mapped the first time before starting the subprocess so that
               the  initial  terminal  size settings and environment variables
               are correct.  It is the application's responsibility  to  catch
               subsequent terminal size changes.

       +wf     This  option indicates that xterm should not wait before start-
               ing the subprocess.

       -ziconbeep percent
               Same as zIconBeep resource.  If  percent  is  non-zero,  xterms
               that  produce  output while iconified will cause an XBell sound
               at the given volume and have  "***"  prepended  to  their  icon
               titles.   Most  window managers will detect this change immedi-
               ately, showing you which window has  the  output.   (A  similar
               feature was in x10 xterm.)

       -C      This  option  indicates that this window should receive console
               output.  This is not supported on all systems.  To obtain  con-
               sole  output,  you must be the owner of the console device, and
               you must have read and write permission for  it.   If  you  are
               running  X under xdm on the console screen you may need to have
               the session startup and reset programs  explicitly  change  the
               ownership  of the console device in order to get this option to
               work.

       -Sccn   This option allows xterm to be used  as  an  input  and  output
               channel  for  an existing program and is sometimes used in spe-
               cialized applications.  The option value specifies the last few
               letters  of the name of a pseudo-terminal to use in slave mode,
               plus the number of  the  inherited  file  descriptor.   If  the
               option  contains  a "/" character, that delimits the characters
               used for the pseudo-terminal name  from  the  file  descriptor.
               Otherwise,  exactly two characters are used from the option for
               the pseudo-terminal name, the remainder is the file descriptor.
               Examples  (the  first  two  are equivalent since the descriptor
               follows the last "/"):

                   -S/dev/pts/123/45
                   -S123/45
                   -Sab34

               Note that xterm does not close any file descriptor which it did
               not  open for its own use.  It is possible (though probably not
               portable) to have an application  which  passes  an  open  file
               descriptor  down  to  xterm  past  the initialization or the -S
               option to a process running in the xterm.


Old Options

       The following command line arguments  are  provided  for  compatibility
       with  older versions.  They may not be supported in the next release as
       the X Toolkit provides standard options that accomplish the same task.

       %geom   This option specifies the preferred size and  position  of  the
               Tektronix  window.  It is shorthand for specifying the "*tekGe-
               ometry" resource.

       #geom   This option specifies the preferred position of the  icon  win-
               dow.   It  is  shorthand  for  specifying  the  "*iconGeometry"
               resource.

       -T string
               This option specifies the title for  xterm's  windows.   It  is
               equivalent to -title.

       -n string
               This option specifies the icon name for xterm's windows.  It is
               shorthand for specifying the "*iconName" resource.   Note  that
               this  is  not the same as the toolkit option -name (see below).
               The default icon name is the application name.

               If no suitable icon is  found,  xterm  provides  a  compiled-in
               pixmap.

       -r      This option indicates that reverse video should be simulated by
               swapping the foreground and background colors.  It  is  equiva-
               lent to -rv.

       -w number
               This  option  specifies  the width in pixels of the border sur-
               rounding the window.  It is equivalent to -borderwidth or -bw.


X Toolkit Options

       The following standard X Toolkit command line  arguments  are  commonly
       used with xterm:

       -bd color
               This  option  specifies  the color to use for the border of the
               window.  The corresponding resource name is borderColor.  Xterm
               uses the X Toolkit default, which is "XtDefaultForeground".

       -bg color
               This  option  specifies  the color to use for the background of
               the window.  The corresponding  resource  name  is  background.
               The default is "XtDefaultBackground".

       -bw number
               This  option  specifies  the width in pixels of the border sur-
               rounding the window.

               This appears to be a legacy of older X releases.  It  sets  the
               borderWidth  resource  of  the  shell  widget,  and may provide
               advice to your window manager to set the thickness of the  win-
               dow  frame.   Most window managers do not use this information.
               See the -b option, which controls the inner border of the xterm
               window.

       -display display
               This option specifies the X server to contact; see X(7).

       -fg color
               This  option  specifies  the  color to use for displaying text.
               The corresponding resource name is foreground.  The default  is
               "XtDefaultForeground".

       -fn font
               This option specifies the font to be used for displaying normal
               text.  The corresponding resource name is font.   The  resource
               value default is fixed.

       -font font
               This is the same as -fn.

       -geometry geometry
               This  option  specifies  the preferred size and position of the
               VT102 window; see X(7).

               The normal geometry specification can be suffixed with  @  fol-
               lowed  by  a  Xinerama screen specification; it can be either g
               for the global screen (default), c for the current screen or  a
               screen number.

       -iconic This  option indicates that xterm should ask the window manager
               to start it as an icon rather than as the normal  window.   The
               corresponding resource name is iconic.

       -name name
               This   option   specifies  the  application  name  under  which
               resources are to be obtained,  rather  than  the  default  exe-
               cutable  file name.  Name should not contain "." or "*" charac-
               ters.

       -rv     This option indicates that reverse video should be simulated by
               swapping the foreground and background colors.  The correspond-
               ing resource name is reverseVideo.

       +rv     Disable the simulation of reverse video by swapping  foreground
               and background colors.

       -title string
               This  option  specifies  the  window title string, which may be
               displayed by window managers  if  the  user  so  chooses.   The
               default  title  is  the  command  line  specified  after the -e
               option, if any, otherwise the application name.

       -xrm resourcestring
               This option specifies a resource string to be  used.   This  is
               especially  useful for setting resources that do not have sepa-
               rate command line options.


RESOURCES

       The program understands all of the core X Toolkit  resource  names  and
       classes.  Application specific resources (e.g., "XTerm.NAME") follow:


Application Resources

       backarrowKeyIsErase (class BackarrowKeyIsErase)
               Tie   the  VTxxx  backarrowKey  and  ptyInitialErase  resources
               together by setting the DECBKM state according to  whether  the
               initial  erase  character  is  a  backspace (8) or delete (127)
               character.  A "false" value disables this feature.  The default
               is "False".

               Here are tables showing how the initial settings for

               o   backarrowKeyIsErase (BKIE),

               o   backarrowKey (BK), and

               o   ptyInitialErase (PIE), along with the

               o   stty erase character (^H for backspace, ^? for delete)

               will  affect  DECBKM.   First,  xterm obtains the initial erase
               character:

               o   xterm's internal value is ^H

               o   xterm asks the operating system for the  value  which  stty
                   shows

               o   the ttyModes resource may override erase

               o   if  ptyInitialErase is false, xterm will look in the termi-
                   nal database

               Summarizing that as a table:

               PIE     stty   termcap   erase
               -------------------------------
               false    ^H      ^H       ^H
               false    ^H      ^?       ^?
               false    ^?      ^H       ^H
               false    ^?      ^?       ^?
               true     ^H      ^H       ^H
               true     ^H      ^?       ^H
               true     ^?      ^H       ^?
               true     ^?      ^?       ^?

               Using that erase character, xterm allows further choices:

               o   if backarrowKeyIsErase is true, xterm uses the erase  char-
                   acter for the initial state of DECBKM

               o   if  backarrowKeyIsErase  is  false,  xterm sets DECBKM to 2
                   (internal).  This ties together backarrowKey and  the  con-
                   trol sequence for DECBKM

               o   applications  can  send  a  control  sequence  to set/reset
                   DECBKM control set

               o   the "Backarrow Key (BS/DEL)" menu entry toggles DECBKM

               Summarizing the initialization details:

               erase   BKIE    BK      DECBKM   result
               ----------------------------------------
                ^?     false   false     2        ^H
                ^?     false   true      2        ^?
                ^?     true    false     0        ^?
                ^?     true    true      1        ^?
                ^H     false   false     2        ^H
                ^H     false   true      2        ^?
                ^H     true    false     0        ^H
                ^H     true    true      1        ^H

       fullscreen (class Fullscreen)
               Specifies whether or not xterm should ask the window manager to
               use  a  fullscreen  layout  on startup.  Xterm accepts either a
               keyword (ignoring case) or the number shown in parentheses:

               false (0)
                  Fullscreen layout is not used initially, but  may  be  later
                  via menu-selection or control sequence.

               true (1)
                  Fullscreen  layout  is  used  initially, but may be disabled
                  later via menu-selection or control sequence.

               always (2)
                  Fullscreen layout is used initially, and cannot be  disabled
                  later via menu-selection or control sequence.

               never (3)
                  Fullscreen  layout  is not used, and cannot be enabled later
                  via menu-selection or control sequence.

               The default is "false".

       hold (class Hold)
               If true, xterm will not immediately destroy its window when the
               shell command completes.  It will wait until you use the window
               manager to destroy/kill the window, or  if  you  use  the  menu
               entries  that send a signal, e.g., HUP or KILL.  You may scroll
               back, select text, etc., to perform most graphical  operations.
               Resizing  the  display  will  lose  data,  however,  since this
               involves interaction with the shell which is no longer running.

       hpFunctionKeys (class HpFunctionKeys)
               Specifies whether or not HP Function Key escape codes should be
               generated   for   function  keys  instead  of  standard  escape
               sequences.

               See also the keyboardType resource.

       iconGeometry (class IconGeometry)
               Specifies the preferred size and position  of  the  application
               when  iconified.   It  is  not necessarily obeyed by all window
               managers.

       iconHint (class IconHint)
               Specifies an icon which will be added  to  the  window  manager
               hints.  Xterm provides no default value.

               Set  this  resource  to "none" to omit the hint entirely, using
               whatever the window manager may decide.

               If the iconHint resource is given (or is set via the -n option)
               xterm searches for a pixmap file with that name, in the current
               directory as well as in /usr/share/pixmaps.   if  the  resource
               does  not  specify  an  absolute pathname.  In each case, xterm
               adds "_48x48" and/or ".xpm" to the filename after trying  with-
               out those suffixes.  If it is able to load the file, xterm sets
               the window manager hint for the icon-pixmap.  These pixmaps are
               distributed with xterm, and can optionally be compiled-in:

               o   mini.xterm_16x16, mini.xterm_32x32, mini.xterm_48x48

               o   filled-xterm_16x16, filled-xterm_32x32, filled-xterm_48x48

               o   xterm_16x16, xterm_32x32, xterm_48x48

               o   xterm-color_16x16, xterm-color_32x32, xterm-color_48x48

               In  either  case, xterm allows for adding a "_48x48" to specify
               the largest of the pixmaps as a default.  That is, "mini.xterm"
               is the same as "mini.xterm_48x48".

               If  no  explicit  iconHint resource is given (or if none of the
               compiled-in names matches), xterm uses "mini.xterm"  (which  is
               always compiled-in).

               The iconHint resource has no effect on "desktop" files, includ-
               ing "panel" and "menu".  Those are typically set via a  ".desk-
               top"  file;  xterm  provides samples for itself (and the uxterm
               script).  The more capable desktop systems allow  changing  the
               icon on a per-user basis.

       iconName (class IconName)
               Specifies  a label for xterm when iconified.  Xterm provides no
               default value; some window managers may assume the  application
               name, e.g., "xterm".

               Setting  the iconName resource sets the icon label unless over-
               ridden by zIconBeep or the control sequences which  change  the
               window and icon labels.

       keyboardType (class KeyboardType)
               Enables  one  (or none) of the various keyboard-type resources:
               hpFunctionKeys, scoFunctionKeys, sunFunctionKeys, tcapFunction-
               Keys  and  sunKeyboard.   The resource's value should be one of
               the  corresponding  strings  "hp",  "sco",  "sun",  "tcap"   or
               "vt220".  The individual resources are provided for legacy sup-
               port; this resource is simpler to use.

               The  default  is  "unknown",  i.e.,  none  of  the   associated
               resources are set via this resource.

       maxBufSize (class MaxBufSize)
               Specify  the  maximum size of the input buffer.  The default is
               "32768".  You cannot set this to a value less than the  minBuf-
               Size  resource.   It  will  be increased as needed to make that
               value evenly divide this one.

               On some systems you may want to increase one  or  both  of  the
               maxBufSize  and  minBufSize  resource  values to achieve better
               performance if  the  operating  system  prefers  larger  buffer
               sizes.

       maximized (class Maximized)
               Specifies whether or not xterm should ask the window manager to
               maximize its layout on startup.  The default is "false".

       messages (class Messages)
               Specifies whether write access to the terminal is allowed  ini-
               tially.  See mesg(1).  The default is "true".

       menuLocale (class MenuLocale)
               Specify  the  locale  used  for character-set computations when
               loading the popup menus.  Use this  to  improve  initialization
               performance  of the Athena popup menus, which may load unneces-
               sary (and very large) fonts, e.g., in  a  locale  having  UTF-8
               encoding.  The default is "C" (POSIX).

               To  use  the  current locale (only useful if you have localized
               the resource settings for the menu entries), set  the  resource
               to an empty string.

       minBufSize (class MinBufSize)
               Specify  the minimum size of the input buffer, i.e., the amount
               of data that xterm requests  on  each  read.   The  default  is
               "4096".  You cannot set this to a value less than 64.

       omitTranslation (class OmitTranslation)
               Selectively  omit one or more parts of xterm's default transla-
               tions at startup.  The resource value is a comma-separated list
               of  keywords,  which may be abbreviated: "fullscreen", "scroll-
               lock", "shift-fonts" or "wheel-mouse".  Xterm  also  recognizes
               "default",  but  omitting  that  will make the program unusable
               unless you provide a similar definition in your  resource  set-
               tings.

       ptyHandshake (class PtyHandshake)
               If "true", xterm will perform handshaking during initialization
               to ensure that the parent and child processes update  the  utmp
               and stty state.

               See  also  waitForMap  which  waits  for  the pseudo-terminal's
               notion of the screen size, and  ptySttySize  which  resets  the
               screen  size  after  other terminal initialization is complete.
               The default is "true".

       ptyInitialErase (class PtyInitialErase)
               If "true", xterm will use the pseudo-terminal's  sense  of  the
               stty  erase  value.   If "false", xterm will set the stty erase
               value to match its own configuration, using the kb string  from
               the  termcap  entry  as  a  reference, if available.  In either
               case, the result is applied to the TERMCAP variable which xterm
               sets.

               See  also  the ttyModes resource, which may override this.  The
               default is "False".

       ptySttySize (class PtySttySize)
               If "true", xterm will reset the screen size after terminal ini-
               tialization is complete.  This is needed for some systems whose
               pseudo-terminals  cannot  propagate  terminal  characteristics.
               Where it is not needed, it can interfere with other methods for
               setting the intial screen size, e.g., via window manager inter-
               action.

               See  also waitForMap which waits for a handshake-message giving
               the pseudo-terminal's notion of the screen size.   The  default
               is "false" on Linux and OS X systems, "true" otherwise.

       reportFonts (class ReportFonts)
               If  true,  xterm will print to the standard output a summary of
               each font's metrics (size, number of glyphs, etc.), as it loads
               them.  The default is "false".

       sameName (class SameName)
               If  the  value  of this resource is "true", xterm does not send
               title and icon name change requests when the request would have
               no  effect: the name is not changed.  This has the advantage of
               preventing flicker and the disadvantage of requiring  an  extra
               round  trip  to  the server to find out the previous value.  In
               practice this should  never  be  a  problem.   The  default  is
               "true".

       scaleHeight (class ScaleHeight)
               Scale  line-height  values by the resource value, which is lim-
               ited to "0.9" to "1.5".  The default value is "1.0",

               While this resource applies to either bitmap or TrueType fonts,
               its main purpose is to help work around incompatible changes in
               the Xft library's font metrics.  Xterm checks the font  metrics
               to find what the library claims are the bounding boxes for each
               glyph (character).  However, some of Xft's  features  (such  as
               the  autohinter)  can cause the glyphs to be scaled larger than
               the bounding boxes, and be partly overwritten by the next row.

               See useClipping for a related resource.

       scoFunctionKeys (class ScoFunctionKeys)
               Specifies whether or not SCO Function Key escape  codes  should
               be  generated  for  function  keys  instead  of standard escape
               sequences.

               See also the keyboardType resource.

       sessionMgt (class SessionMgt)
               If the value of this resource is "true", xterm sets up  session
               manager  callbacks for XtNdieCallback and XtNsaveCallback.  The
               default is "true".

       sunFunctionKeys (class SunFunctionKeys)
               Specifies whether or not Sun Function Key escape  codes  should
               be  generated  for  function  keys  instead  of standard escape
               sequences.

               See also the keyboardType resource.

       sunKeyboard (class SunKeyboard)
               Specifies whether or  not  Sun/PC  keyboard  layout  should  be
               assumed  rather  than DEC VT220.  This causes the keypad "+" to
               be mapped to ",".  and CTRL F1-F10 to F11-F20, depending on the
               setting  of  the  ctrlFKeys  resource,  so xterm emulates a DEC
               VT220 more accurately.  Otherwise (the  default,  with  sunKey-
               board  set  to  "false"),  xterm uses PC-style bindings for the
               function keys and keypad.

               PC-style bindings use the Shift, Alt, Control and Meta keys  as
               modifiers  for function-keys and keypad (see the document Xterm
               Control Sequences for  details).   The  PC-style  bindings  are
               analogous  to  PCTerm,  but not the same thing.  Normally these
               bindings do not conflict with  the  use  of  the  Meta  key  as
               described  for  the  eightBitInput  resource.  If they do, note
               that the PC-style bindings are evaluated first.

               See also the keyboardType resource.

       tcapFunctionKeys (class TcapFunctionKeys)
               Specifies whether or not function key escape  codes  read  from
               the  termcap/terminfo  entry  should  be generated for function
               keys instead of standard  escape  sequences.   The  default  is
               "false", i.e., this feature is disabled.

               See also the keyboardType resource.

       termName (class TermName)
               Specifies the terminal type name to be set in the TERM environ-
               ment variable.

       title (class Title)
               Specifies a string that may be used by the window manager  when
               displaying this application.

       toolBar (class ToolBar)
               Specifies  whether or not the toolbar should be displayed.  The
               default is "true".

       ttyModes (class TtyModes)
               Specifies a string containing terminal setting keywords and the
               characters  to  which  they  may  be bound.  Allowable keywords
               include: brk, dsusp, eof,  eol,  eol2,  erase,  erase2,  flush,
               intr,  kill,  lnext,  quit,  rprnt,  start, status, stop, susp,
               swtch and weras.  Control characters may be specified as  ^char
               (e.g.,  ^c  or ^u) and ^? may be used to indicate delete (127).
               Use ^- to denote undef.  Use \034 to represent ^\, since a lit-
               eral backslash in an X resource escapes the next character.

               This  is  very  useful for overriding the default terminal set-
               tings without having to do an  stty  every  time  an  xterm  is
               started.   Note, however, that the stty program on a given host
               may use different keywords; xterm's table is built-in.

               If the ttyModes resource specifies  a  value  for  erase,  that
               overrides  the  ptyInitialErase  resource  setting, i.e., xterm
               initializes the terminal to match that value.

       useInsertMode (class UseInsertMode)
               Force use of insert mode by adding appropriate entries  to  the
               TERMCAP  environment  variable.   This  is useful if the system
               termcap is broken.  (This resource is ignored on most  systems,
               because TERMCAP is not used).  The default is "false".

       utmpDisplayId (class UtmpDisplayId)
               Specifies whether or not xterm should try to record the display
               identifier (display number and screen number) as  well  as  the
               hostname in the system utmp log file.  The default is "true".

       utmpInhibit (class UtmpInhibit)
               Specifies  whether or not xterm should try to record the user's
               terminal in the system utmp log file.  If true, xterm will  not
               try.  The default is "false".

       waitForMap (class WaitForMap)
               Specifies whether or not xterm should wait for the initial win-
               dow map before starting the subprocess.  This is  part  of  the
               ptyHandshake  logic.   When  xterm  is directed to wait in this
               fashion, it passes the terminal size from the  display  end  of
               the pseudo-terminal to the terminal I/O connection, e.g., using
               the size according to the window manager.  Otherwise,  it  uses
               the  size  as  given  in resource values or command-line option
               -geom.  The default is "false".

       zIconBeep (class ZIconBeep)
               Same as -ziconbeep command line argument.  If the value of this
               resource  is  non-zero, xterms that produce output while iconi-
               fied will cause an XBell sound at the  given  volume  and  have
               "*** "  prepended  to  their icon titles.  Most window managers
               will detect this change immediately, showing you  which  window
               has  the  output.   (A  similar feature was in x10 xterm.)  The
               default is "false".

       zIconTitleFormat (class ZIconTitleFormat)
               Allow customization of the string used in  the  zIconBeep  fea-
               ture.  The default value is "*** %s".

               If  the  resource value contains a "%s", then xterm inserts the
               icon title at that point rather than prepending the  string  to
               the icon title.  (Only the first "%s" is used).


VT100 Widget Resources

       The  following  resources  are  specified  as  part of the vt100 widget
       (class   VT100).    They   are   specified   by   patterns   such    as
       "XTerm.vt100.NAME".

       If  your  xterm is configured to support the "toolbar", then those pat-
       terns need an extra level for the form-widget which holds  the  toolbar
       and  vt100  widget.   A  wildcard between the top-level "XTerm" and the
       "vt100" widget makes the  resource  settings  work  for  either,  e.g.,
       "XTerm*vt100.NAME".

       activeIcon (class ActiveIcon)
               Specifies  whether  or  not  active icon windows are to be used
               when the xterm window is iconified, if this feature is compiled
               into  xterm.   The active icon is a miniature representation of
               the content of the  window  and  will  update  as  the  content
               changes.   Not all window managers necessarily support applica-
               tion icon windows.  Some window  managers  will  allow  you  to
               enter  keystrokes  into the active icon window.  The default is
               "default".

               Xterm accepts either a keyword (ignoring case)  or  the  number
               shown in parentheses:

               false (0)
                      No active icon is shown.

               true (1)
                      The  active  icon  is  shown.  If you are using twm, use
                      this setting to enable active-icons.

               default (2)
                      Xterm checks at startup, and shows an active  icon  only
                      for  window managers which it can identify and which are
                      known to support the feature.  These are fvwm (full sup-
                      port),  and window maker (limited).  A few other windows
                      managers (such as twm and ctwm)  support  active  icons,
                      but  do  not support the extensions which allow xterm to
                      identify the window manager.

       allowBoldFonts (class AllowBoldFonts)
               When set to "false", xterm will not use bold fonts.  This over-
               rides  both  the  alwaysBoldMode  and  the  boldMode resources.
               alwaysBoldMode (class AlwaysBoldMode)

       allowC1Printable (class AllowC1Printable)
               If true, overrides the mapping of C1 controls  (codes  128-159)
               to  make  them be treated as if they were printable characters.
               Although this corresponds to no particular standard, some users
               insist it is a VT100.  The default is "false".

       allowColorOps (class AllowColorOps)
               Specifies  whether control sequences that set/query the dynamic
               colors should be allowed.  ANSI colors are unaffected  by  this
               resource setting.  The default is "true".

       allowFontOps (class AllowFontOps)
               Specifies  whether  control  sequences  that set/query the font
               should be allowed.  The default is "true".

       allowPasteControls (class AllowPasteControls)
               If true, allow control characters such as BEL  and  CAN  to  be
               pasted.    Formatting  characters  (tab,  newline)  are  always
               allowed.  Other C0 control  characters  are  suppressed  unless
               this  resource is enabled.  The exact set of control characters
               (C0 and C1) depends upon whether UTF-8  encoding  is  used,  as
               well as the allowC1Printable resource.  The default is "false".

       allowScrollLock (class AllowScrollLock)
               Specifies  whether  control sequences that set/query the Scroll
               Lock key should be allowed, as well as whether the Scroll  Lock
               key responds to user's keypress.  The default is "false".

               When this feature is enabled, xterm will sense the state of the
               Scroll Lock key each time  it  acquires  focus.   Pressing  the
               Scroll Lock key toggles xterm's internal state, as well as tog-
               gling the associated LED.  While the  Scroll  Lock  is  active,
               xterm attempts to keep a viewport on the same set of lines.  If
               the current viewport is scrolled past  the  limit  set  by  the
               saveLines resource, then Scroll Lock has no further effect.

               The  reason for setting the default to "false" is to avoid user
               surprise.  This key is generally unused in keyboard  configura-
               tions,  and has not acquired a standard meaning even when it is
               used in that manner.  Consequently, users have assigned it  for
               ad hoc purposes.

       allowSendEvents (class AllowSendEvents)
               Specifies  whether or not synthetic key and button events (gen-
               erated using the X protocol SendEvent request) should be inter-
               preted  or  discarded.  The default is "false" meaning they are
               discarded.  Note that allowing such events would create a  very
               large  security  hole,  therefore enabling this resource force-
               fully disables  the  allowXXXOps  resources.   The  default  is
               "false".

       allowTcapOps (class AllowTcapOps)
               Specifies  whether  control sequences that query the terminal's
               notion of its function-key  strings,  as  termcap  or  terminfo
               capabilities should be allowed.  The default is "true".

               A  few programs, e.g., vim, use this feature to get an accurate
               description of the terminal's capabilities, independent of  the
               termcap/terminfo setting:

               o   Xterm can tell the querying program how many colors it sup-
                   ports.  This is a constant, depending on  how  it  is  com-
                   piled,  typically  16.   It  does  not  change if you alter
                   resource settings, e.g., the boldColors resource.

               o   Xterm can tell the querying program what strings  are  sent
                   by  modified (shift-, control-, alt-) function- and keypad-
                   keys.  Reporting control- and alt-modifiers  is  a  feature
                   that relies on the ncurses extended naming.

       allowTitleOps (class AllowTitleOps)
               Specifies  whether  control  sequences  that  modify the window
               title or icon name should be allowed.  The default is "true".

       allowWindowOps (class AllowWindowOps)
               Specifies whether extended window control sequences (as used in
               dtterm)  should  be  allowed.   These  include  several control
               sequences which manipulate the window size or position, as well
               as  reporting these values and the title or icon name.  Each of
               these can be abused in a script; curiously enough most terminal
               emulators  that  implement  these restrict only a small part of
               the repertoire.  For fine-tuning, see disallowedWindowOps.  The
               default is "false".

       altIsNotMeta (class AltIsNotMeta)
               If  "true", treat the Alt-key as if it were the Meta-key.  Your
               keyboard may happen to be configured so they are the same.  But
               if  they  are  not, this allows you to use the same prefix- and
               shifting operations with the Alt-key as with the Meta-key.  See
               altSendsEscape and metaSendsEscape.  The default is "false".

       altSendsEscape (class AltSendsEscape)
               This  is an additional keyboard operation that may be processed
               after the logic for metaSendsEscape.  It is only  available  if
               the altIsNotMeta resource is set.

               o   If  "true",  Alt  characters (a character combined with the
                   modifier associated with left/right Alt-keys) are converted
                   into  a  two-character  sequence  with the character itself
                   preceded by ESC.  This applies as well to function key con-
                   trol  sequences, unless xterm sees that Alt is used in your
                   key translations.

               o   If "false", Alt characters input from the keyboard cause  a
                   shift  to 8-bit characters (just like metaSendsEscape).  By
                   combining the Alt- and Meta-modifiers, you can create  cor-
                   responding combinations of ESC-prefix and 8-bit characters.

               The  default is "False".  Xterm provides a menu option for tog-
               gling this resource.

       alternateScroll (class ScrollCond)
               If "true", the scroll-back and scroll-forw  actions  send  cur-
               sor-up  and  -down  keys when xterm is displaying the alternate
               screen.  The default is "false".

               The alternateScroll state can  also  be  set  using  a  control
               sequence.

       alwaysBoldMode (class AlwaysBoldMode)
               Specifies  whether  xterm  should  check if the normal and bold
               fonts are distinct before deciding whether to use  overstriking
               to  simulate  bold fonts.  If this resource is true, xterm does
               not make the check for distinct fonts when deciding how to han-
               dle the boldMode resource.  The default is "false".

               boldMode   alwaysBoldMode   Comparison   Action
               ----------------------------------------------------
               false      false            ignored      use font
               false      true             ignored      use font
               true       false            same         overstrike
               true       false            different    use font
               true       true             ignored      overstrike

               This resource is used only for bitmap fonts:

               o   When  using  bitmap  fonts,  it  is  possible that the font
                   server will approximate the bold font by rescaling it  from
                   a  different  font  size than expected.  The alwaysBoldMode
                   resource allows the user to override the  (sometimes  poor)
                   resulting  bold  font  with overstriking (which is at least
                   consistent).

               o   The problem does not  occur  with  TrueType  fonts  (though
                   there  can  be  other  unnecessary issues such as different
                   coverage of the normal and bold fonts).

               As an alternative, setting the allowBoldFonts resource to false
               overrides both the alwaysBoldMode and the boldMode resources.

       alwaysHighlight (class AlwaysHighlight)
               Specifies  whether  or  not xterm should always display a high-
               lighted text cursor.  By default (if this resource is false), a
               hollow  text cursor is displayed whenever the pointer moves out
               of the window or the window loses the input focus.  The default
               is "false".

       alwaysUseMods (class AlwaysUseMods)
               Override the numLock resource, telling xterm to use the Alt and
               Meta  modifiers  to  construct  parameters  for  function   key
               sequences  even  if  those modifiers appear in the translations
               resource.  Normally xterm checks if Alt or Meta is  used  in  a
               translation  that  would  conflict with function key modifiers,
               and will ignore these modifiers  in  that  special  case.   The
               default is "false".

       answerbackString (class AnswerbackString)
               Specifies  the  string  that  xterm sends in response to an ENQ
               (control/E) character from the host.  The default  is  a  blank
               string,  i.e., "".  A hardware VT100 implements this feature as
               a setup option.

       appcursorDefault (class AppcursorDefault)
               If "true", the cursor keys are initially in  application  mode.
               This  is the same as the VT102 private DECCKM mode, The default
               is "false".

       appkeypadDefault (class AppkeypadDefault)
               If "true", the keypad keys are initially in  application  mode.
               The default is "false".

       assumeAllChars (class AssumeAllChars)
               If "true", this enables a special case in bitmap fonts to allow
               the font server to choose how to display missing  glyphs.   The
               default is "true".

               The  reason  for  this  resource is to help with certain quasi-
               automatically generated fonts (such as the ISO-10646-1 encoding
               of Terminus) which have incorrect font-metrics.

       autoWrap (class AutoWrap)
               Specifies  whether  or  not  auto-wraparound should be enabled.
               This is the same as the VT102 DECAWM.  The default is "true".

       awaitInput (class AwaitInput)
               Specifies whether or not xterm uses a 50 millisecond timeout to
               await  input (i.e., to support the Xaw3d arrow scrollbar).  The
               default is "false".

       backarrowKey (class BackarrowKey)
               Specifies whether the backarrow key transmits a  backspace  (8)
               or delete (127) character.  This corresponds to the DECBKM con-
               trol  sequence.   A  "true"  value  specifies  backspace.   The
               default  is  "True".   Pressing  the  control  key toggles this
               behavior.

       background (class Background)
               Specifies the color to use for the background  of  the  window.
               The default is "XtDefaultBackground".

       bellIsUrgent (class BellIsUrgent)
               Specifies  whether  to set the Urgency hint for the window man-
               ager when making a bell sound.  The default is "false".

       bellOnReset (class BellOnReset)
               Specifies whether to sound a bell when doing a hard reset.  The
               default is "true".

       bellSuppressTime (class BellSuppressTime)
               Number  of  milliseconds  after  a  bell command is sent during
               which additional bells will be suppressed.  Default is 200.  If
               set  non-zero,  additional  bells will also be suppressed until
               the server reports that processing of the first bell  has  been
               completed; this feature is most useful with the visible bell.

       boldColors (class ColorMode)
               Specifies  whether  to  combine bold attribute with colors like
               the IBM PC, i.e., map colors 0 through 7 to  colors  8  through
               15.   These  normally  are the brighter versions of the first 8
               colors, hence bold.  The default is "true".

       boldFont (class BoldFont)
               Specifies the name of the bold font to  use  instead  of  over-
               striking.  There is no default for this resource.

               This font must be the same height and width as the normal font,
               otherwise it is ignored.  If only one of  the  normal  or  bold
               fonts  is specified, it will be used as the normal font and the
               bold font will be produced by overstriking this font.

               See  also  the  discussion  of  boldMode   and   alwaysBoldMode
               resources.

       boldMode (class BoldMode)
               This  specifies  whether  or  not  text with the bold attribute
               should be overstruck to simulate bold  fonts  if  the  resolved
               bold  font is the same as the normal font.  It may be desirable
               to disable bold fonts when color is being  used  for  the  bold
               attribute.

               Note that xterm has one bold font which you may set explicitly.
               Xterm attempts to derive a bold font for the other font  selec-
               tions (font1 through font6).  If it cannot find a bold font, it
               will use the normal font.  In each case (whether  the  explicit
               resource or the derived font), if the normal and bold fonts are
               distinct, this resource has no effect.  The default is "true".

               See the alwaysBoldMode resource which can modify  the  behavior
               of this resource.

               Although  xterm  attempts  to derive a bold font for other font
               selections, the font server may not  cooperate.   Since  X11R6,
               bitmap  fonts have been scaled.  The font server claims to pro-
               vide the bold font that xterm requests, but the result  is  not
               always  readable.   XFree86  introduced  a feature which can be
               used to suppress the scaling.  In the X server's  configuration
               file  (e.g.,  "/etc/X11/XFree86"  or "/etc/X11/xorg.conf"), you
               can add ":unscaled" to the end of the  directory  specification
               for the "misc" fonts, which comprise the fixed-pitch fonts that
               are used by xterm.  For example

                   FontPath                 "/usr/lib/X11/fonts/misc/"

               would become

                   FontPath                 "/usr/lib/X11/fonts/misc/:unscaled"

               Depending on your configuration, the font server may  have  its
               own  configuration  file.  The same ":unscaled" can be added to
               its configuration file at the end of the  directory  specifica-
               tion for "misc".

               The  bitmap  scaling feature is also used by xterm to implement
               VT102 double-width and double-height characters.

       brokenLinuxOSC (class BrokenLinuxOSC)
               If true, xterm applies a workaround to ignore malformed control
               sequences  that a Linux script might send.  Compare the palette
               control sequences documented  in  console_codes  with  ECMA-48.
               The default is "true".

       brokenSelections (class BrokenSelections)
               If  true,  xterm in 8-bit mode will interpret STRING selections
               as carrying text in the current  locale's  encoding.   Normally
               STRING  selections carry ISO-8859-1 encoded text.  Setting this
               resource to "true" violates the ICCCM; it may, however, be use-
               ful for interacting with some broken X clients.  The default is
               "false".

       brokenStringTerm (class BrokenStringTerm)
               provides a work-around for some ISDN  routers  which  start  an
               application  control string without completing it.  Set this to
               "true" if xterm appears to freeze when connecting.  The default
               is "false".

               Xterm's  state  parser  recognizes  several  types  of  control
               strings which can contain text, e.g.,

               APC (Application Program Command),
               DCS (Device Control String),
               OSC (Operating System Command),
               PM (Privacy Message), and
               SOS (Start of String),

               Each should end with a string-terminator (a  special  character
               which  cannot appear in these strings).  Ordinary control char-
               acters found within the string are not ignored; they  are  pro-
               cessed without interfering with the process of accumulating the
               control string's content.  Xterm recognizes these  controls  in
               all  modes,  although  some  of the functions may be suppressed
               after parsing the control.

               When enabled, this feature allows the  user  to  exit  from  an
               unterminated  control string when any of these ordinary control
               characters are found:

               control/D (used as an end of file in many shells),
               control/H (backspace),
               control/I (tab-feed),
               control/J (line feed aka newline),
               control/K (vertical tab),
               control/L (form feed),
               control/M (carriage return),
               control/N (shift-out),
               control/O (shift-in),
               control/Q (XOFF),
               control/X (cancel)

       c132 (class C132)
               Specifies whether or not the  VT102  DECCOLM  escape  sequence,
               used  to  switch between 80 and 132 columns, should be honored.
               The default is "false".

       cacheDoublesize (class CacheDoublesize)
               Tells whether to cache double-sized fonts by xterm.   Set  this
               to zero to disable double-sized fonts altogether.

       cdXtraScroll (class CdXtraScroll)
               Specifies whether xterm should scroll to a new page when clear-
               ing the whole screen.  Like tiXtraScroll, the  intent  of  this
               option is to provide a picture of the full-screen application's
               display on the scrollback before  wiping  out  the  text.   The
               default for this resource is "false".

       charClass (class CharClass)
               Specifies  comma-separated lists of character class bindings of
               the form [low-]high:value.  These are used in determining which
               sets  of  characters  should be treated the same when doing cut
               and paste.  See the CHARACTER CLASSES section.

       cjkWidth (class CjkWidth)
               Specifies whether xterm  should  follow  the  traditional  East
               Asian  width  convention.  When turned on, characters with East
               Asian Ambiguous (A) category in UTR 11 have a column  width  of
               2.   You may have to set this option to "true" if you have some
               old East Asian terminal based programs that assume  that  line-
               drawing  characters have a column width of 2.  If this resource
               is false, the mkWidth resource controls the choice between  the
               system's  wcwidth  and xterm's built-in tables.  The default is
               "false".

       color0 (class Color0)

       color1 (class Color1)

       color2 (class Color2)

       color3 (class Color3)

       color4 (class Color4)

       color5 (class Color5)

       color6 (class Color6)

       color7 (class Color7)
               These specify the  colors  for  the  ISO-6429  extension.   The
               defaults  are,  respectively,  black,  red3, green3, yellow3, a
               customizable dark  blue,  magenta3,  cyan3,  and  gray90.   The
               default  shades of color are chosen to allow the colors 8-15 to
               be used as brighter versions.

       color8 (class Color8)

       color9 (class Color9)

       color10 (class Color10)

       color11 (class Color11)

       color12 (class Color12)

       color13 (class Color13)

       color14 (class Color14)

       color15 (class Color15)
               These specify the colors for the ISO-6429 extension if the bold
               attribute  is  also  enabled.   The default resource values are
               respectively, gray30, red, green, yellow, a customizable  light
               blue, magenta, cyan, and white.

       color16 (class Color16)

       through

       color255 (class Color255)
               These  specify  the  colors  for  the 256-color extension.  The
               default resource values are for colors 16 through 231 to make a
               6x6x6  color  cube,  and  colors  232  through  255  to  make a
               grayscale ramp.

               Resources past color15 are available as a compile-time  option.
               Due to a hardcoded limit in the X libraries on the total number
               of resources (to 400), the resources for 256-colors are omitted
               when  wide-character  support  and  luit  are enabled.  Besides
               inconsistent behavior  if  only  part  of  the  resources  were
               allowed,  determining  the exact cutoff is difficult, and the X
               libraries tend to crash if the number of resources exceeds  the
               limit.   The  color  palette  is  still initialized to the same
               default values, and can be modified via control sequences.

               On the other hand, the resource limit does permit including the
               entire range for 88-colors.

       colorAttrMode (class ColorAttrMode)
               Specifies whether colorBD, colorBL, colorRV, and colorUL should
               override ANSI colors.  If not, these are displayed only when no
               ANSI  colors have been set for the corresponding position.  The
               default is "false".

       colorBD (class ColorBD)
               This specifies the color to use to display bold  characters  if
               the  "colorBDMode"  resource is enabled.  The default is "XtDe-
               faultForeground".

               See also the veryBoldColors  resource  which  allows  combining
               bold and color.

       colorBDMode (class ColorAttrMode)
               Specifies  whether characters with the bold attribute should be
               displayed in color or as bold characters.   Note  that  setting
               colorMode off disables all colors, including bold.  The default
               is "false".

       colorBL (class ColorBL)
               This specifies the color to use to display blink characters  if
               the  "colorBLMode"  resource is enabled.  The default is "XtDe-
               faultForeground".

               See also the veryBoldColors  resource  which  allows  combining
               underline and color.

       colorBLMode (class ColorAttrMode)
               Specifies whether characters with the blink attribute should be
               displayed in color.  Note that setting colorMode  off  disables
               all colors, including this.  The default is "false".

       colorIT (class ColorIT)
               This specifies the color to use to display italic characters if
               the "colorITMode" resource is enabled.  The default  is  "XtDe-
               faultForeground".

               See  also  the  veryBoldColors  resource which allows combining
               attributes and color.

       colorITMode (class ColorAttrMode)
               Specifies whether characters with the italic  attribute  should
               be  displayed in color or as italic characters.  The default is
               "false".

               Note that:

               o   Setting  colorMode  off  disables  all  colors,   including
                   italic.

               o   The italicULMode resource overrides colorITMode.

       colorMode (class ColorMode)
               Specifies  whether  or not recognition of ANSI (ISO-6429) color
               change escape sequences should  be  enabled.   The  default  is
               "true".

       colorRV (class ColorRV)
               This  specifies  the color to use to display reverse characters
               if the "colorRVMode"  resource  is  enabled.   The  default  is
               "XtDefaultForeground".

               See  also  the  veryBoldColors  resource which allows combining
               reverse and color.

       colorRVMode (class ColorAttrMode)
               Specifies whether characters with the reverse attribute  should
               be  displayed  in  color.  Note that setting colorMode off dis-
               ables all colors, including this.  The default is "false".

       colorUL (class ColorUL)
               This specifies the color to use to display  underlined  charac-
               ters  if the "colorULMode" resource is enabled.  The default is
               "XtDefaultForeground".

               See also the veryBoldColors  resource  which  allows  combining
               underline and color.

       colorULMode (class ColorAttrMode)
               Specifies  whether  characters  with  the  underline  attribute
               should be displayed in color or as underlined characters.  Note
               that  setting  colorMode  off  disables  all  colors, including
               underlining.  The default is "false".

       combiningChars (class CombiningChars)
               Specifies the number of wide-characters which can be stored  in
               a  cell  to overstrike (combine) with the base character of the
               cell.  This can be set to values in the  range  0  to  4.   The
               default is "2".

       ctrlFKeys (class CtrlFKeys)
               In  VT220  keyboard  mode (see sunKeyboard resource), specifies
               the amount by which to shift F1-F12 given  a  control  modifier
               (CTRL).  This allows you to generate key symbols for F10-F20 on
               a Sun/PC keyboard.  The default is "10", which means that  CTRL
               F1 generates the key symbol for F11.

       curses (class Curses)
               Specifies  whether or not the last column bug in more(1) should
               be worked around.  See the -cu option for details.  The default
               is "false".

       cursorBlink (class CursorBlink)
               Specifies  whether  to  make  the cursor blink.  The default is
               "false".

               Xterm uses  two  variables  to  determine  whether  the  cursor
               blinks.  One is set by this resource.  The other is set by con-
               trol sequences (private mode 12 and DECSCUSR).  Xterm tests the
               XOR of the two variables.

       cursorColor (class CursorColor)
               Specifies the color to use for the text cursor.  The default is
               "XtDefaultForeground".  By default, xterm attempts to keep this
               color  from  being  the  same as the background color, since it
               draws the cursor by filling the background of a text cell.  The
               same  restriction applies to control sequences which may change
               this color.

               Setting this resource overrides most of xterm's adjustments  to
               cursor color.  It will still use reverse-video to disallow some
               cases, such as a black cursor on a black background.

       cursorOffTime (class CursorOffTime)
               Specifies the duration of the "off" part of  the  cursor  blink
               cycle-time  in  milliseconds.   The same timer is used for text
               blinking.  The default is "300".

       cursorOnTime (class CursorOnTime)
               Specifies the duration of the "on" part  of  the  cursor  blink
               cycle-time,  in  milliseconds.  The same timer is used for text
               blinking.  The default is "600".

       cutNewline (class CutNewline)
               If "false", triple clicking to select a line does  not  include
               the  Newline at the end of the line.  If "true", the Newline is
               selected.  The default is "true".

       cursorUnderLine (class CursorUnderLine)
               Specifies whether to make the cursor underlined or a box.   The
               default is "false".

       cutToBeginningOfLine (class CutToBeginningOfLine)
               If  "false", triple clicking to select a line selects only from
               the current word  forward.   If  "true",  the  entire  line  is
               selected.  The default is "true".

       decTerminalID (class DecTerminalID)
               Specifies  the  emulation  level  (100=VT100, 220=VT220, etc.),
               used to  determine  the  type  of  response  to  a  DA  control
               sequence.   Leading  non-digit  characters  are  ignored, e.g.,
               "vt100" and "100" are the same.  The default is "420".

       defaultString (class DefaultString)
               Specify the character (or string) which xterm  will  substitute
               when  pasted  text  includes a character which cannot be repre-
               sented in the current encoding.  For  instance,  pasting  UTF-8
               text  into a display of ISO-8859-1 characters will only be able
               to display codes 0-255, while UTF-8 text  can  include  Unicode
               values above 255.  The default is "#" (a single pound sign).

               If the undisplayable text would be double-width, xterm will add
               a space after the "#" character, to give roughly the same  lay-
               out on the screen as the original text.

       deleteIsDEL (class DeleteIsDEL)
               Specifies  whether  the Delete key on the editing keypad should
               send DEL (127) or the VT220-style Remove  escape  sequence.   A
               "false" value enables the latter.  The default is "Maybe".

       disallowedColorOps (class DisallowedColorOps)
               Specify  which  features  will  be disabled if allowColorOps is
               false.  This is a comma-separated list of names.   The  default
               value is
               SetColor,GetColor,GetAnsiColor

               The  names are listed below.  Xterm ignores capitalization, but
               they are shown in mixed-case for clarity.

               SetColor
                    Set a specific dynamic color.

               GetColor
                    Report the current setting of a given dynamic color.

               GetAnsiColor
                    Report the current setting of a given ANSI color (actually
                    any of the colors set via ANSI-style controls).

       disallowedFontOps (class DisallowedFontOps)
               Specify  which  features  will  be  disabled if allowFontOps is
               false.  This is a comma-separated list of names.   The  default
               value is
               SetFont,GetFont

               The  names are listed below.  Xterm ignores capitalization, but
               they are shown in mixed-case for clarity.

               SetFont
                    Set the specified font.

               GetFont
                    Report the specified font.

       disallowedTcapOps (class DisallowedTcapOps)
               Specify which features will  be  disabled  if  allowTcapOps  is
               false.   This  is a comma-separated list of names.  The default
               value is
               SetTcap,GetTcap

               The names are listed below.  Xterm ignores capitalization,  but
               they are shown in mixed-case for clarity.

               SetTcap
                    (not implemented)

               GetTcap
                    Report specified function- and other special keys.

       disallowedWindowOps (class DisallowedWindowOps)
               Specify  which  features  will be disabled if allowWindowOps is
               false.  This is a comma-separated list of names,  or  (for  the
               controls  adapted  from  dtterm  the  operation  number).   The
               default value is
               20,21,SetXprop,SetSelection

               The names are listed below.  Xterm ignores capitalization,  but
               they  are  shown in mixed-case for clarity.  Where a number can
               be used as an alternative, it is given in parentheses after the
               name.

               GetIconTitle (20)
                    Report xterm window's icon label as a string.

               GetScreenSizeChars (19)
                    Report the size of the screen in characters as numbers.

               GetSelection
                    Report selection data as a base64 string.

               GetWinPosition (13)
                    Report xterm window position as numbers.

               GetWinSizeChars (18)
                    Report the size of the text area in characters as numbers.

               GetWinSizePixels (14)
                    Report xterm window in pixels as numbers.

               GetWinState (11)
                    Report xterm window state as a number.

               GetWinTitle (21)
                    Report xterm window's title as a string.

               LowerWin (6)
                    Lower  the  xterm  window  to  the  bottom of the stacking
                    order.

               MaximizeWin (9)
                    Maximize window (i.e., resize to screen size).

               FullscreenWin (10)
                    Use full screen (i.e., resize to screen size, without win-
                    dow decorations).

               MinimizeWin (2)
                    Iconify window.

               PopTitle (23)
                    Pop title from internal stack.

               PushTitle (22)
                    Push title to internal stack.

               RaiseWin (5)
                    Raise the xterm window to the front of the stacking order.

               RefreshWin (7)
                    Refresh the xterm window.

               RestoreWin (1)
                    De-iconify window.

               SetSelection
                    Set selection data.

               SetWinLines
                    Resize to a given number of lines, at least 24.

               SetWinPosition (3)
                    Move window to given coordinates.

               SetWinSizeChars (8)
                    Resize the text area to given size in characters.

               SetWinSizePixels (4)
                    Resize the xterm window to given size in pixels.

               SetXprop
                    Set X property on top-level window.

       dynamicColors (class DynamicColors)
               Specifies  whether  or  not  escape  sequences to change colors
               assigned to different attributes are recognized.

       eightBitControl (class EightBitControl)
               Specifies whether or not control sequences sent by the terminal
               should  be  eight-bit  characters  or  escape  sequences.   The
               default is "false".

       eightBitInput (class EightBitInput)
               If "true", Meta characters (a  single-byte  character  combined
               with  the  Meta  modifier key) input from the keyboard are pre-
               sented as a single character, modified according to the  eight-
               BitMeta  resource.   If  "false", Meta characters are converted
               into a two-character sequence with the  character  itself  pre-
               ceded by ESC.  The default is "true".

               The  metaSendsEscape  and altSendsEscape resources may override
               this feature.  Generally keyboards do not have  a  key  labeled
               "Meta",  but "Alt" keys are common, and they are conventionally
               used for "Meta".  If they were synonymous, it would  have  been
               reasonable  to  name  this resource "altSendsEscape", reversing
               its sense.  For more background on this, see the meta  function
               in curses.

               Note  that  the Alt key is not necessarily the same as the Meta
               modifier.  The xmodmap utility lists  your  key  modifiers.   X
               defines  modifiers  for shift, (caps) lock and control, as well
               as 5 additional modifiers which are generally used to configure
               key modifiers.  Xterm inspects the same information to find the
               modifier associated with either Meta key (left or  right),  and
               uses that key as the Meta modifier.  It also looks for the Num-
               Lock key, to recognize the modifier which  is  associated  with
               that.

               If  your  xmodmap configuration uses the same keycodes for Alt-
               and Meta-keys, xterm will only  see  the  Alt-key  definitions,
               since  those  are  tested  before Meta-keys.  NumLock is tested
               first.  It is important to keep these keys distinct;  otherwise
               some of xterm's functionality is not available.

               The  eightBitInput  resource  is  tested  at  startup time.  If
               "true", the xterm tries to put the terminal  into  8-bit  mode.
               If  "false",  on  startup, xterm tries to put the terminal into
               7-bit mode.  For  some  configurations  this  is  unsuccessful;
               failure  is  ignored.  After startup, xterm does not change the
               terminal between 8-bit and 7-bit mode.

               As originally implemented in X11, the resource  value  did  not
               change after startup.  However (since patch #216 in 2006) xterm
               can modify eightBitInput after startup via a control  sequence.
               The corresponding terminfo capabilities smm (set meta mode) and
               rmm (reset meta mode) have been recognized  by  bash  for  some
               time.   Interestingly enough, bash's notion of "meta mode" dif-
               fers from the standard definition  (in  the  terminfo  manual),
               which  describes  the  change to the eighth bit of a character.
               It happens that bash views "meta mode"  as  the  ESC  character
               that  xterm  puts before a character when a special meta key is
               pressed.  bash's early documentation talks about the ESC  char-
               acter and ignores the eighth bit.

       eightBitMeta (class EightBitMeta)
               This  controls  the way xterm modifies the eighth bit of a sin-
               gle-byte key when  the  eightBitInput  resource  is  set.   The
               default is "locale".

               The  resource  value  is a string, evaluated as a boolean after
               startup.

               false
                    The key is sent unmodified.

               locale
                    The key is modified only  if  the  locale  uses  eight-bit
                    encoding.

               true The key is sent modified.

               never
                    The key is always sent unmodified.

               Except for the never choice, xterm honors the terminfo capabil-
               ities smm (set meta mode) and rmm (reset meta  mode),  allowing
               the feature to be turned on or off dynamically.

               If  eightBitMeta  is  enabled when the locale uses UTF-8, xterm
               encodes the value as UTF-8 (since patch #183 in 2003).

       eightBitOutput (class EightBitOutput)
               Specifies whether or not eight-bit  characters  sent  from  the
               host  should  be  accepted as is or stripped when printed.  The
               default is "true", which means that they are accepted as is.

       eightBitSelectTypes (class EightBitSelectTypes)
               Override   xterm's   default   selection   target   list   (see
               SELECT/PASTE)  for selections in normal (ISO-8859-1) mode.  The
               default is an empty string, i.e., "", which does  not  override
               anything.

       faceName (class FaceName)
               Specify  the  pattern  for  scalable  fonts  selected  from the
               FreeType library if support for that library was compiled  into
               xterm.  There is no default value.

               If  not  specified, or if there is no match for both normal and
               bold fonts, xterm uses the bitmap font and related resources.

               It is possible to select suitable bitmap fonts using  a  script
               such as this:

                   #!/bin/sh
                   FONT=`xfontsel -print`
                   test -n "$FONT" && xfd -fn "$FONT"

               However  (even  though  xfd  accepts  a  "-fa" option to denote
               FreeType fonts), xfontsel has not been similarly extended.   As
               a workaround, you may try

                   fc-list :scalable=true:spacing=mono: family

               to  find a list of scalable fixed-pitch fonts which may be used
               for the faceName resource value.

       faceNameDoublesize (class FaceNameDoublesize)
               Specify a double-width scalable font for cases where an  appli-
               cation  requires  this, e.g., in CJK applications.  There is no
               default value.

               If  the  application  uses  double-wide  characters  and   this
               resource  is  not given, xterm will use a scaled version of the
               font given by faceName.

       faceSize (class FaceSize)
               Specify the pointsize for  fonts  selected  from  the  FreeType
               library  if  support  for that library was compiled into xterm.
               The default is "14.0" On the VT Fonts menu, this corresponds to
               the Default entry.

               Although the default is "14.0", this may not be the same as the
               pointsize for the default bitmap font, i.e., that assigned with
               the -fn option, or the font resource.  For example, the "fixed"
               font usually has a pointsize of "8.0".  If you set faceSize  to
               match  the size of the bitmap font, then switching between bit-
               map and TrueType fonts via the font menu will  give  comparable
               sizes for the window.

               You  can specify the pointsize for TrueType fonts selected with
               the other size-related menu entries such as Medium, Huge, etc.,
               by  using  one of the following resource values.  If you do not
               specify a value, they default to "0.0", which causes  xterm  to
               use  the ratio of font sizes from the corresponding bitmap font
               resources to obtain a TrueType pointsize.

               If all of the faceSize resources are set, then xterm  will  use
               this  information to determine the next smaller/larger TrueType
               font for the larger-vt-font()  and  smaller-vt-font()  actions.
               If any are not set, xterm will use only the areas of the bitmap
               fonts.

       faceSize1 (class FaceSize1)
               Specifies the pointsize of the first alternative font.

       faceSize2 (class FaceSize2)
               Specifies the pointsize of the second alternative font.

       faceSize3 (class FaceSize3)
               Specifies the pointsize of the third alternative font.

       faceSize4 (class FaceSize4)
               Specifies the pointsize of the fourth alternative font.

       faceSize5 (class FaceSize5)
               Specifies the pointsize of the fifth alternative font.

       faceSize6 (class FaceSize6)
               Specifies the pointsize of the sixth alternative font.

       font (class Font)
               Specifies the name of the normal font.  The default is "fixed".

               See the discussion of the locale resource, which describes  how
               this font may be overridden.

               NOTE: some resource files use patterns such as

                   *font: fixed

               which are overly broad, affecting both

                   xterm.vt100.font

               and

                   xterm.vt100.utf8Fonts.font

               which is probably not what you intended.

       fastScroll (class FastScroll)
               Modifies  the effect of jump scroll (jumpScroll) by suppressing
               screen refreshes for the special case when output to the screen
               has  completely shifted the contents off-screen.  For instance,
               cat'ing a large file to the screen does this.

       font1 (class Font1)
               Specifies the name of the first alternative font, corresponding
               to "Unreadable" in the standard menu.

       font2 (class Font2)
               Specifies  the name of the second alternative font, correspond-
               ing to "Tiny" in the standard menu.

       font3 (class Font3)
               Specifies the name of the third alternative font, corresponding
               to "Small" in the standard menu.

       font4 (class Font4)
               Specifies  the name of the fourth alternative font, correspond-
               ing to "Medium" in the standard menu.

       font5 (class Font5)
               Specifies the name of the fifth alternative font, corresponding
               to "Large" in the standard menu.

       font6 (class Font6)
               Specifies the name of the sixth alternative font, corresponding
               to "Huge" in the standard menu.

       fontDoublesize (class FontDoublesize)
               Specifies whether xterm should attempt to use font  scaling  to
               draw  double-sized  characters.  Some older font servers cannot
               do this properly, will return  misleading  font  metrics.   The
               default  is  "true".   If disabled, xterm will simulate double-
               sized characters  by  drawing  normal  characters  with  spaces
               between them.

       fontWarnings (class FontWarnings)
               Specify  whether  xterm  should  report an error if it fails to
               load a font:

               0    Never report an error (though the X libraries may).

               1    Report an error if the font name was given as  a  resource
                    setting.

               2    Always report an error on failure to load a font.

               The default is "1".

       forceBoxChars (class ForceBoxChars)
               Specifies whether xterm should assume the normal and bold fonts
               have VT100 line-drawing characters:

               o   The fixed-pitch ISO-8859-*-encoded fonts used by xterm nor-
                   mally  have  the  VT100  line-drawing glyphs in cells 1-31.
                   Other fixed-pitch fonts may be more  attractive,  but  lack
                   these glyphs.

               o   When  using  an ISO-10646-1 font and the wideChars resource
                   is true, xterm uses the  Unicode  glyphs  which  match  the
                   VT100 line-drawing glyphs.

               If  "false",  xterm  checks  for missing glyphs in the font and
               makes line-drawing characters directly as needed.   If  "true",
               xterm  assumes the font does not contain the line-drawing char-
               acters, and draws them directly.  The default is "false".

       forcePackedFont (class ForcePackedFont)
               Specifies whether xterm should use the maximum or minimum glyph
               width  when  displaying  using  a bitmap font.  Use the maximum
               width to help with proportional fonts.  The default is  "true",
               denoting the minimum width.

       foreground (class Foreground)
               Specifies  the  color to use for displaying text in the window.
               Setting the class name instead of the instance name is an  easy
               way  to  have everything that would normally appear in the text
               color change color.  The default is "XtDefaultForeground".

       formatOtherKeys (class FormatOtherKeys)
               Overrides the format of the escape sequence used to report mod-
               ified keys with the modifyOtherKeys resource.

               0  send   modified  keys  as  parameters  for  function-key  27
                  (default).

               1  send modified keys as parameters for CSI u.

       freeBoldBox (class FreeBoldBox)
               Specifies whether xterm should assume the  bounding  boxes  for
               normal  and  bold fonts are compatible.  If "false", xterm com-
               pares them and will reject choices of bold fonts  that  do  not
               match  the  size  of  the normal font.  The default is "false",
               which means that the comparison is performed.

       geometry (class Geometry)
               Specifies the preferred size and position of the VT102  window.
               There is no default for this resource.

       highlightColor (class HighlightColor)
               Specifies  the  color  to  use  for  the background of selected
               (highlighted) text.   If  not  specified  (i.e.,  matching  the
               default  foreground),  reverse  video  is used.  The default is
               "XtDefaultForeground".

       highlightColorMode (class HighlightColorMode)
               Specifies whether xterm should use highlightTextColor and high-
               lightColor  to override the reversed foreground/background col-
               ors in a selection.  The default is  unspecified:  at  startup,
               xterm checks if those resources are set to something other than
               the default foreground and  background  colors.   Setting  this
               resource disables the check.

               The  following  table shows the interaction of the highlighting
               resources, abbreviated as shown to fit in this page:

               HCM
                  highlightColorMode

               HR highlightReverse

               HBG
                  highlightColor

               HFG
                  highlightTextColor

               HCM       HR      HBG       HFG       Highlight
               ------------------------------------------------------
               false     false   default   default   bg/fg
               false     false   default   set       bg/fg
               false     false   set       default   fg/HBG
               false     false   set       set       fg/HBG
               ------------------------------------------------------
               false     true    default   default   bg/fg
               false     true    default   set       bg/fg
               false     true    set       default   fg/HBG
               false     true    set       set       fg/HBG
               ------------------------------------------------------
               true      false   default   default   bg/fg
               true      false   default   set       HFG/fg
               true      false   set       default   bg/HBG
               true      false   set       set       HFG/HBG
               ------------------------------------------------------
               true      true    default   default   fg/fg (useless)
               true      true    default   set       HFG/fg
               true      true    set       default   fg/HBG
               true      true    set       set       HFG/HBG
               ------------------------------------------------------
               default   false   default   default   bg/fg
               default   false   default   set       bg/fg
               default   false   set       default   fg/HBG
               default   false   set       set       HFG/HBG
               ------------------------------------------------------
               default   true    default   default   bg/fg
               default   true    default   set       bg/fg
               default   true    set       default   fg/HBG
               default   true    set       set       HFG/HBG
               ------------------------------------------------------

       highlightReverse (class HighlightReverse)
               Specifies whether xterm should reverse the selection foreground
               and  background  colors  when selecting text with reverse-video
               attribute.  This applies only to the highlightColor  and  high-
               lightTextColor  resources,  e.g.,  to match the color scheme of
               xwsh.  If "true", xterm reverses the colors, If "false",  xterm
               does not reverse colors, The default is "true".

       highlightSelection (class HighlightSelection)
               If  "false",  selecting with the mouse highlights all positions
               on the screen between the beginning of the  selection  and  the
               current  position.   If "true", xterm highlights only the posi-
               tions that contain text that can be selected.  The  default  is
               "false".

               Depending  on  the  way  your applications write to the screen,
               there may be trailing blanks on a line.  Xterm stores  data  as
               it  is  shown  on  the screen.  Erasing the display changes the
               internal state of each cell so it is not considered a blank for
               the  purpose of selection.  Blanks written since the last erase
               are selectable.  If you do not wish to have trailing blanks  in
               a selection, use the trimSelection resource.

       highlightTextColor (class HighlightTextColor)
               Specifies  the  color  to  use  for  the foreground of selected
               (highlighted) text.   If  not  specified  (i.e.,  matching  the
               default  background),  reverse  video  is used.  The default is
               "XtDefaultBackground".

       hpLowerleftBugCompat (class HpLowerleftBugCompat)
               Specifies whether to work around  a  bug  in  HP's  xdb,  which
               ignores  termcap  and  always  sends ESC F to move to the lower
               left corner.  "true" causes xterm  to  interpret  ESC  F  as  a
               request  to  move  to the lower left corner of the screen.  The
               default is "false".

       i18nSelections (class I18nSelections)
               If false, xterm will not request the targets  COMPOUND_TEXT  or
               TEXT.   The  default is "true". It may be set to false in order
               to work around ICCCM violations by other X clients.

       iconBorderColor (class BorderColor)
               Specifies the border color for the active icon window  if  this
               feature  is  compiled into xterm.  Not all window managers will
               make the icon border visible.

       iconBorderWidth (class BorderWidth)
               Specifies the border width for the active icon window  if  this
               feature  is  compiled into xterm.  The default is "2".  Not all
               window managers will make the border visible.

       iconFont (class IconFont)
               Specifies the font for the miniature  active  icon  window,  if
               this feature is compiled into xterm.  The default is "nil2".

       initialFont (class InitialFont)
               Specifies  which  of  the VT100 fonts to use initially.  Values
               are the same as for the set-vt-font  action.   The  default  is
               "d", i.e., "default".

       inputMethod (class XtCInputMethod)
               Tells  xterm  which  type  of input method to use.  There is no
               default method.

       internalBorder (class BorderWidth)
               Specifies the number of pixels between the characters  and  the
               window border.  The default is "2".

       italicULMode (class ColorAttrMode)
               Specifies  whether  characters  with  the  underline  attribute
               should be displayed in an italic font or as underlined  charac-
               ters.  It is implemented only for TrueType fonts.

       jumpScroll (class JumpScroll)
               Specifies whether or not jump scroll should be used.  This cor-
               responds to the VT102 DECSCLM private  mode.   The  default  is
               "true".  See fastScroll for a variation.

       keepClipboard (class KeepClipboard)
               Specifies  whether xterm will reuse the selection data which it
               copied to the keyboard rather than asking the clipboard for its
               current  contents  when  told  to  provide  the selection.  The
               default is "false".

       keepSelection (class KeepSelection)
               Specifies whether xterm will keep the selection even after  the
               selected  area was touched by some output to the terminal.  The
               default is "true".

       keyboardDialect (class KeyboardDialect)
               Specifies the initial keyboard dialect, as well as the  default
               value  when the terminal is reset.  The value given is the same
               as the final character in the control  sequences  which  change
               character  sets.   The  default is "B", which corresponds to US
               ASCII.

       nameKeymap (class NameKeymap)
               See the discussion of the keymap() action.

       limitResize (class LimitResize)
               Limits resizing of the screen via control sequence to  a  given
               multiple of the display dimensions.  The default is "1".

       locale (class Locale)
               Specifies  how to use luit, an encoding converter between UTF-8
               and locale encodings.  The resource value (ignoring  case)  may
               be:

               true
                   Xterm  will  use  the  encoding  specified  by  the  users'
                   LC_CTYPE locale (i.e., LC_ALL, LC_CTYPE, or LANG variables)
                   as  far  as  possible.  This is realized by always enabling
                   UTF-8 mode and invoking luit in non-UTF-8 locales.

               medium
                   Xterm will follow users' LC_CTYPE locale  only  for  UTF-8,
                   east  Asian, and Thai locales, where the encodings were not
                   supported by conventional 8bit mode  with  changing  fonts.
                   For other locales, xterm will use conventional 8bit mode.

               checkfont
                   If  mini-luit is compiled-in, xterm will check if a Unicode
                   font has been specified.  If so, it checks if the character
                   encoding  for  the  current  locale  is  POSIX,  Latin-1 or
                   Latin-9, uses the appropriate mapping to support those with
                   the  Unicode font.  For other encodings, xterm assumes that
                   UTF-8 encoding is required.

               false
                   Xterm will use conventional 8bit mode or UTF-8 mode accord-
                   ing to utf8 resource or -u8 option.

               Any other value, e.g., "UTF-8" or "ISO8859-2", is assumed to be
               an encoding name; luit will be invoked to support the encoding.
               The  actual  list  of supported encodings depends on luit.  The
               default is "medium".

               Regardless of your locale and encoding, you need an ISO-10646-1
               font to display the result.  Your configuration may not include
               this font, or locale-support by xterm may not  be  needed.   At
               startup,  xterm  uses  a  mechanism  equivalent to the load-vt-
               fonts(utf8Fonts, Utf8Fonts) action to  load  font  name  subre-
               sources  of  the VT100 widget.  That is, resource patterns such
               as  "*vt100.utf8Fonts.font"  will  be  loaded,  and  (if   this
               resource  is enabled), override the normal fonts.  If no subre-
               sources are found, the  normal  fonts  such  as  "*vt100.font",
               etc.,  are used.  The resource files distributed with xterm use
               ISO-10646-1 fonts, but do not rely on them unless you are using
               the locale mechanism.

       localeFilter (class LocaleFilter)
               Specifies  the  file  name  for  the encoding converter from/to
               locale encodings and UTF-8 which is used with the -lc option or
               locale resource.  The help message shown by "xterm -help" lists
               the default value, which depends on your system configuration.

               If the encoding converter requires command-line parameters, you
               can add those after the command, e.g.,

                   *localeFilter: xterm-filter -p

               Alternatively,  you  may  put  those  parameter  within a shell
               script to execute the converter, and set this resource to point
               to the shell script.

               When  using  a  locale-filter, e.g., with the -e option, or the
               shell, xterm first tries passing control via that  filter.   If
               it  fails,  xterm  will retry without the locale-filter.  Xterm
               warns about the failure before retrying.

       loginShell (class LoginShell)
               Specifies whether or not the shell to  be  run  in  the  window
               should be started as a login shell.  The default is "false".

       marginBell (class MarginBell)
               Specifies  whether or not the bell should be rung when the user
               types near the right margin.  The default is "false".

       metaSendsEscape (class MetaSendsEscape)
               If "true", Meta characters (a character combined with the  Meta
               modifier  key) are converted into a two-character sequence with
               the character itself preceded by ESC.  This applies as well  to
               function  key control sequences, unless xterm sees that Meta is
               used in your key translations.   If  "false",  Meta  characters
               input  from the keyboard are handled according to the eightBit-
               Input resource.  The default is "False".

       mkSamplePass (class MkSamplePass)
               If mkSampleSize is nonzero,  and  mkWidth  (and  cjkWidth)  are
               false,  on  startup  xterm  compares its built-in tables to the
               system's wide character width data to decide if it will use the
               system's  data.  It tests the first mkSampleSize character val-
               ues, and allows up to mkSamplePass mismatches before  the  test
               fails.   The  default (for the allowed number of mismatches) is
               256.

       mkSampleSize (class MkSampleSize)
               With mkSamplePass, this specifies a startup test used for  ini-
               tializing wide character width calculations.  The default (num-
               ber of characters to check) is 1024.

       mkWidth (class MkWidth)
               Specifies whether xterm should use a built-in  version  of  the
               wide  character  width  calculation.   See  also  the  cjkWidth
               resource which can override this.  The default is "false".

               Here is a summary of the resources which control the choice  of
               wide character width calculation:

               cjkWidth   mkWidth   Action
               ---------------------------------------------------------------
               false      false     use system tables subject to mkSamplePass
               false      true      use built-in tables
               true       false     use built-in CJK tables
               true       true      use built-in CJK tables

       modifyCursorKeys (class ModifyCursorKeys)
               Tells  how  to  handle the special case where Control-, Shift-,
               Alt- or Meta-modifiers are used  to  add  a  parameter  to  the
               escape sequence returned by a cursor-key.  The default is "2":

               -1   disables the feature.

               0    uses the old/obsolete behavior.

               1    prefixes modified sequences with CSI.

               2    forces the modifier to be the second parameter if it would
                    otherwise be the first.

               3    marks the sequence with a ">" to hint that it is private.

       modifyFunctionKeys (class ModifyFunctionKeys)
               Tells how to handle the special case  where  Control-,  Shift-,
               Alt-  or  Meta-modifiers  are  used  to  add a parameter to the
               escape sequence returned by  a  (numbered)  function-key.   The
               default  is "2".  The resource values are similar to modifyCur-
               sorKeys:

               -1   permits the user to use shift-  and  control-modifiers  to
                    construct  function-key  strings using the normal encoding
                    scheme.

               0    uses the old/obsolete behavior.

               1    prefixes modified sequences with CSI.

               2    forces the modifier to be the second parameter if it would
                    otherwise be the first.

               3    marks the sequence with a ">" to hint that it is private.

               If  modifyFunctionKeys  is zero, xterm uses Control- and Shift-
               modifiers to allow the user to construct numbered function-keys
               beyond the set provided by the keyboard:

               Control
                    adds the value given by the ctrlFKeys resource.

               Shift
                    adds twice the value given by the ctrlFKeys resource.

               Control/Shift
                    adds   three  times  the  value  given  by  the  ctrlFKeys
                    resource.

       modifyKeyboard (class ModifyKeyboard)
               Normally xterm makes a special case regarding modifiers (shift,
               control,  etc.)  to handle special keyboard layouts (legacy and
               vt220).  This is done to provide compatible keyboards  for  DEC
               VT220  and  related  terminals that implement user-defined keys
               (UDK).

               The bits of the resource value selectively enable  modification
               of  the  given category when these keyboards are selected.  The
               default is "0":

               0    The legacy/vt220 keyboards interpret only the Control-mod-
                    ifier  when  constructing  numbered  function-keys.  Other
                    special keys are not modified.

               1    allows modification of the numeric keypad

               2    allows modification of the editing keypad

               4    allows modification of  function-keys,  overrides  use  of
                    Shift-modifier for UDK.

               8    allows modification of other special keys

       modifyOtherKeys (class ModifyOtherKeys)
               Like  modifyCursorKeys,  tells  xterm  to  construct  an escape
               sequence for other keys (such as "2")  when  modified  by  Con-
               trol-,  Alt- or Meta-modifiers.  This feature does not apply to
               function keys and well-defined keys such as ESC or the  control
               keys.  The default is "0":

               0    disables this feature.

               1    enables  this feature for keys except for those with well-
                    known behavior, e.g., Tab, Backarrow and some special con-
                    trol character cases, e.g., Control-Space to make a NUL.

               2    enables  this  feature  for  keys including the exceptions
                    listed.

       multiClickTime (class MultiClickTime)
               Specifies the maximum time in milliseconds between  multi-click
               select events.  The default is "250" milliseconds.

       multiScroll (class MultiScroll)
               Specifies  whether  or  not  scrolling  should  be  done  asyn-
               chronously.  The default is "false".

       nMarginBell (class Column)
               Specifies the number of characters from  the  right  margin  at
               which  the  margin  bell  should  be  rung, when enabled by the
               marginBell resource.  The default is "10".

       numLock (class NumLock)
               If "true", xterm checks if NumLock is used as a  modifier  (see
               xmodmap(1)).   If  so,  this  modifier  is used to simplify the
               logic when implementing special  NumLock  for  the  sunKeyboard
               resource.   Also  (when sunKeyboard is false), similar logic is
               used to find the modifier associated with the  left  and  right
               Alt keys.  The default is "true".

       oldXtermFKeys (class OldXtermFKeys)
               If "true", xterm will use old-style control sequences for func-
               tion keys F1 to F4, for compatibility with X Consortium  xterm.
               Otherwise,  it  uses the VT100-style codes for PF1 to PF4.  The
               default is "false".

       on2Clicks (class On2Clicks)

       on3Clicks (class On3Clicks)

       on4Clicks (class On4Clicks)

       on5Clicks (class On5Clicks)
               Specify  selection  behavior  in  response  to  multiple  mouse
               clicks.    A  single  mouse  click  is  always  interpreted  as
               described in the SELECTION section (see POINTER USAGE).  Multi-
               ple  mouse clicks (using the button which activates the select-
               start action) are interpreted according to the resource  values
               of on2Clicks, etc.  The resource value can be one of these:

               word
                  Select  a  "word"  as  determined by the charClass resource.
                  See the CHARACTER CLASSES section.

               line
                  Select a line (counting wrapping).

               group
                  Select a group of adjacent lines (counting  wrapping).   The
                  selection stops on a blank line, and does not extend outside
                  the current page.

               page
                  Select all visible lines, i.e., the page.

               all
                  Select all lines, i.e., including the saved lines.

               regex
                  Select a "word" as  determined  by  the  regular  expression
                  which follows in the resource value.

               none
                  No selection action is associated with this resource.  Xterm
                  interprets it as the end of the list.  For example, you  may
                  use  it  to  disable triple (and higher) clicking by setting
                  on3Clicks to "none".

               The default values for on2Clicks and on3Clicks are  "word"  and
               "line",  respectively.  There is no default value for on4Clicks
               or on5Clicks, making those inactive.  On startup, xterm  deter-
               mines  the  maximum  number of clicks by the onXClicks resource
               values which are set.

       openIm (class XtCOpenIm)
               Tells xterm whether to open the input method at  startup.   The
               default is "true".

       pointerColor (class PointerColor)
               Specifies  the foreground color of the pointer.  The default is
               "XtDefaultForeground".

       pointerColorBackground (class PointerColorBackground)
               Specifies the background color of the pointer.  The default  is
               "XtDefaultBackground".

       pointerMode (class PointerMode)
               Specifies when the pointer may be hidden as the user types.  It
               will be redisplayed if the user moves the mouse, or clicks  one
               of its buttons.

               0  never

               1  the  application  running  in  xterm has not activated mouse
                  mode.  This is the default.

               2  always.

       pointerShape (class Cursor)
               Specifies the name of the shape of the pointer.  The default is
               "xterm".

       popOnBell (class PopOnBell)
               Specifies  whether the window would be raised when Control-G is
               received.  The default is "false".

               If the window is iconified, this has no effect.   However,  the
               zIconBeep  resource  provides you with the ability to see which
               iconified windows have sounded a bell.

       precompose (class XtCPrecompose)
               Tells xterm whether to precompose UTF-8 data into Normalization
               Form  C, which combines commonly-used accents onto base charac-
               ters.  If it does not do this, accents are left  as  separatate
               characters.  The default is "true".

       preeditType (class XtCPreeditType)
               Tells  xterm  which  types of preedit (preconversion) string to
               display.  The default is "OverTheSpot,Root".

       printAttributes (class PrintAttributes)
               Specifies whether to print graphic attributes  along  with  the
               text.   A  real  DEC  VTxxx  terminal will print the underline,
               highlighting codes but your printer may not handle these.

               o   "0" disables the attributes.

               o   "1" prints the normal set of attributes  (bold,  underline,
                   inverse and blink) as VT100-style control sequences.

               o   "2" prints ANSI color attributes as well.

               The default is "1".

       printFileImmediate (PrintFileImmediate)
               When  the  print-immediate  action is invoked, xterm prints the
               screen contents directly to a file.  Set this resource  to  the
               prefix  of  the  filename  (a timestamp will be appended to the
               actual name).

               The default is an empty string, i.e.,  "",  However,  when  the
               print-immediate action is invoked, if the string is empty, then
               "XTerm" is used.

       printFileOnXError (PrintFileOnXError)
               If xterm exits with an X error, e.g., your connection is broken
               when  the  server crashes, it can be told to write the contents
               of the screen to a file.   To  enable  the  feature,  set  this
               resource  to  the  prefix  of the filename (a timestamp will be
               appended to the actual name).

               The default is an empty string, i.e., "", which  disables  this
               feature.   However,  when the print-on-error action is invoked,
               if the string is empty, then "XTermError" is used.

               These error codes are handled: ERROR_XERROR, ERROR_XIOERROR and
               ERROR_ICEERROR.

       printModeImmediate (PrintModeImmediate)
               When  the  print-immediate  action is invoked, xterm prints the
               screen contents directly to a file.  You can use the  printMod-
               eImmediate  resource  to  tell  it  to  use escape sequences to
               reconstruct the video attributes and  colors.   This  uses  the
               same  values  as  the printAttributes resource.  The default is
               "0".

       printModeOnXError (PrintModeOnXError)
               Xterm  implements  the  printFileOnXError  feature  using   the
               printer  feature,  although the output is written directly to a
               file.  You can use the printModeOnXError resource to tell it to
               use  escape  sequences  to reconstruct the video attributes and
               colors.  This uses  the  same  values  as  the  printAttributes
               resource.  The default is "0".

       printOptsImmediate (PrintOptsImmediate)
               Specify  the  range of text which is printed to a file when the
               print-immediately action is invoked.

               o   If zero (0), then this selects the current (visible screen)
                   plus  the  saved  lines,  except if the alternate screen is
                   being used.  In that case, only  the  alternate  screen  is
                   selectd.

               o   If  nonzero,  the  bits  of this resource value (checked in
                   descending order) select the range:

                   8  selects the saved lines.

                   4  selects the alternate screen.

                   2  selects the normal screen.

                   1  selects the current screen, which can be either the nor-
                      mal or alternate screen.

               The  default  is  "9", which selects the current visible screen
               plus saved lines, with  no  special  case  for  the  alternated
               screen.

       printOptsOnXError (PrintOptsOnXError)
               Specify  the  range of text which is printed to a file when the
               print-on-error action is invoked.  The resource value is inter-
               preted the same as in printOptsImmediate.

               The  default  is  "9", which selects the current visible screen
               plus saved lines, with  no  special  case  for  the  alternated
               screen.

       printerAutoClose (class PrinterAutoClose)
               If  "true",  xterm  will  close  the  printer (a pipe) when the
               application switches the printer offline with a Media Copy com-
               mand.  The default is "false".

       printerCommand (class PrinterCommand)
               Specifies  a shell command to which xterm will open a pipe when
               the first MC (Media Copy) command is initiated.  The default is
               an  empty  string, i.e., "".  If the resource value is given as
               an empty string, the printer is disabled.

       printerControlMode (class PrinterControlMode)
               Specifies the printer control mode.  A  "1"  selects  autoprint
               mode,  which  causes xterm to print a line from the screen when
               you move the cursor off that line with a line feed,  form  feed
               or  vertical  tab  character, or an autowrap occurs.  Autoprint
               mode is overridden by printer controller mode  (a  "2"),  which
               causes  all  of  the output to be directed to the printer.  The
               default is "0".

       printerExtent (class PrinterExtent)
               Controls whether a print page function will  print  the  entire
               page  (true),  or only the portion within the scrolling margins
               (false).  The default is "false".

       printerFormFeed (class PrinterFormFeed)
               Controls whether a form feed is sent to the printer at the  end
               of a print page function.  The default is "false".

       printerNewLine (class PrinterNewLine)
               Controls whether a newline is sent to the printer at the end of
               a print page function.  The default is "true".

       privateColorRegisters (class privateColorRegisters)
               If true, allocate  separate  color  registers  for  each  sixel
               device  control  string,  e.g., for DECGCI.  If not true, color
               registers are allocated only once, when the terminal is  reset.
               The default is "true".

       quietGrab (class QuietGrab)
               Controls  whether  the  cursor is repainted when NotifyGrab and
               NotifyUngrab event types are received during change  of  focus.
               The default is "false".

       regisScreenSize (class RegisScreenSize)
               If xterm is configured to support ReGIS graphics, this resource
               tells xterm the maximum size (in pixels) for graphics.

               Xterm accepts a special  resource  value  "auto",  which  tells
               xterm to use the decTerminalID resource to set the maximum size
               based on the  hardware  terminal's  limits.   Otherwise,  xterm
               expects the size to be given as heightxwidth, e.g., "800x1000".

               The default resource value is "800x1000".

       renderFont (class RenderFont)
               If  xterm  is built with the Xft library, this controls whether
               the faceName resource is used.  The default is "default".

               The resource values are strings, evaluated  as  booleans  after
               startup.

               false
                    disable the feature and use the normal (bitmap) font.

               true
                    startup  using the TrueType font specified by the faceName
                    and faceSize resource settings.  If there is no value  for
                    faceName,  disable the feature and use the normal (bitmap)
                    font.

                    After startup, you can still  switch  to/from  the  bitmap
                    font using the "TrueType Fonts" menu entry.

               default
                    startup  using  the  normal  (bitmap) font, but enable the
                    "TrueType Fonts" menu entry  to  allow  runtime  switching
                    to/from TrueType fonts.

                    If there is no faceName resource set, then runtime switch-
                    ing to TrueType fonts is disabled.  Xterm has  a  separate
                    compiled-in  value for faceName for the special case where
                    renderFont is "default".  That is normally "mono".

       resizeGravity (class ResizeGravity)
               Affects the behavior when the window is resized to be taller or
               shorter.   NorthWest specifies that the top line of text on the
               screen stay fixed.  If the window is made  shorter,  lines  are
               dropped  from  the  bottom; if the window is made taller, blank
               lines are added at the bottom.  This  is  compatible  with  the
               behavior  in  R4.   SouthWest  (the default) specifies that the
               bottom line of text on the screen stay fixed.  If the window is
               made  taller, additional saved lines will be scrolled down onto
               the screen; if the  window  is  made  shorter,  lines  will  be
               scrolled  off  the  top  of the screen, and the top saved lines
               will be dropped.

       retryInputMethod (class XtCRetryInputMethod)
               Tells xterm how many times to retry, in case  the  input-method
               server  is  not  responding.   This  is  a different issue than
               unsupported preedit type, etc.  You may  encounter  retries  if
               your  X  configuration  (and its libraries) are missing pieces.
               Setting this resource to zero ``0'' will cancel  the  retrying.
               The default is ``3''.

       reverseVideo (class ReverseVideo)
               Specifies  whether  or  not  reverse video should be simulated.
               The default is "false".

               There are several aspects to reverse video in xterm:

               o   The command-line  -rv  option  tells  the  X  libraries  to
                   reverse the foreground and background colors.  Xterm's com-
                   mand-line options set resource values.  In particular,  the
                   X  Toolkit  sets  the  reverseVideo  resource  when the -rv
                   option is used.

               o   If the user has also used command-line options -fg  or  -bg
                   to set the foreground and background colors, xterm does not
                   see these  options  directly.   Instead,  it  examines  the
                   resource  values  to  reconstruct the command-line options,
                   and determine which of the colors is  the  user's  intended
                   foreground, etc.  Their actual values are irrelevant to the
                   reverse video function; some users prefer  the  X  defaults
                   (black  text  on  a  white background), others prefer white
                   text on a black background.

               o   After startup, the user  can  toggle  the  "Enable  Reverse
                   Video"  menu  entry.  This exchanges the current foreground
                   and background colors of the VT100 widget, and repaints the
                   screen.  Because of the X resource hierarchy, the reverseV-
                   ideo resource applies to more than the VT100 widget.

               Programs running in an xterm can also use control sequences  to
               enable  the VT100 reverse video mode.  These are independent of
               the reverseVideo resource and the menu entry.  Xterm  exchanges
               the  current foreground and background colors when drawing text
               affected by these control sequences.

               Other control sequences can alter the foreground and background
               colors which are used:

               o   Programs  can  also use the ANSI color control sequences to
                   set the foreground and background colors.

               o   Extensions to the ANSI color controls (such as 16-, 88-  or
                   256-colors) are treated similarly to the ANSI control.

               o   Using  other  control  sequences (the "dynamic colors" fea-
                   ture), a program can change the foreground  and  background
                   colors.

       reverseWrap (class ReverseWrap)
               Specifies  whether or not reverse-wraparound should be enabled.
               This corresponds to xterm's private mode 45.   The  default  is
               "false".

       rightScrollBar (class RightScrollBar)
               Specifies  whether  or not the scrollbar should be displayed on
               the right rather than the left.  The default is "false".

       saveLines (class SaveLines)
               Specifies the number of lines to save beyond  the  top  of  the
               screen when a scrollbar is turned on.  The default is "64".

       scrollBar (class ScrollBar)
               Specifies  whether  or  not  the scrollbar should be displayed.
               The default is "false".

       scrollBarBorder (class ScrollBarBorder)
               Specifies the width of the scrollbar border.  Note that this is
               drawn to overlap the border of the xterm window.  Modifying the
               scrollbar's border affects only the line between the VT100 wid-
               get and the scrollbar.  The default value is 1.

       scrollKey (class ScrollCond)
               Specifies  whether  or  not pressing a key should automatically
               cause the scrollbar to  go  to  the  bottom  of  the  scrolling
               region.   This  corresponds  to xterm's private mode 1011.  The
               default is "false".

       scrollLines (class ScrollLines)
               Specifies the number of lines that the scroll-back and  scroll-
               forw actions should use as a default.  The default value is 1.

       scrollTtyOutput (class ScrollCond)
               Specifies whether or not output to the terminal should automat-
               ically cause the scrollbar to go to the bottom of the scrolling
               region.  The default is "true".

       selectToClipboard (class SelectToClipboard)
               Tells  xterm whether to use the PRIMARY or CLIPBOARD for SELECT
               tokens in the selection mechanism.  The set-select  action  can
               change this at runtime, allowing the user to work with programs
               that handle only one  of  these  mechanisms.   The  default  is
               "false", which tells it to use PRIMARY.

       shiftFonts (class ShiftFonts)
               Specifies  whether  to  enable the actions larger-vt-font() and
               smaller-vt-font(), which are  normally  bound  to  the  shifted
               KP_Add and KP_Subtract.  The default is "true".

       showBlinkAsBold (class ShowBlinkAsBold)
               Tells  xterm  whether  to display text with blink-attribute the
               same as bold.  If xterm has  not  been  configured  to  support
               blinking  text,  the  default  is  "true", which corresponds to
               older versions of xterm, otherwise the default is "false".

       showMissingGlyphs (class ShowMissingGlyphs)
               Tells xterm whether to display a box outlining places  where  a
               character  has been used that the font does not represent.  The
               default is "false".

       showWrapMarks (class ShowWrapMarks)
               For debugging xterm and applications that  may  manipulate  the
               wrapped-line  flag  by writing text at the right margin, show a
               mark on the right inner-border of the window.  The  mark  shows
               which lines have the flag set.

       signalInhibit (class SignalInhibit)
               Specifies whether or not the entries in the "Main Options" menu
               for sending signals to xterm should be disallowed.  The default
               is "false".

       sixelScrolling (class SixelScrolling)
               If  true,  graphics  scroll  up  one line at a time when sixels
               would be written past the  bottom  line  on  the  window.   The
               default is "false".

       tekGeometry (class Geometry)
               Specifies the preferred size and position of the Tektronix win-
               dow.  There is no default for this resource.

       tekInhibit (class TekInhibit)
               Specifies whether or not the escape sequence to enter Tektronix
               mode should be ignored.  The default is "false".

       tekSmall (class TekSmall)
               Specifies whether or not the Tektronix mode window should start
               in its smallest size if no explicit geometry is given.  This is
               useful  when running xterm on displays with small screens.  The
               default is "false".

       tekStartup (class TekStartup)
               Specifies whether or not xterm should  start  up  in  Tektronix
               mode.  The default is "false".

       tiXtraScroll (class TiXtraScroll)
               Specifies  whether  xterm should scroll to a new page when pro-
               cessing the ti termcap entry, i.e., the private modes 47,  1047
               or  1049.   This  is  only  in effect if titeInhibit is "true",
               because the intent of this option is to provide  a  picture  of
               the full-screen application's display on the scrollback without
               wiping out the text that would be shown before the  application
               was initialized.  The default for this resource is "false".

       titeInhibit (class TiteInhibit)
               Specifies  whether or not xterm should remove ti and te termcap
               entries (used to switch between alternate screens on startup of
               many  screen-oriented  programs)  from  the TERMCAP string.  If
               set, xterm also ignores the escape sequence to  switch  to  the
               alternate  screen.  Xterm supports terminfo in a different way,
               supporting composite control sequences (also known  as  private
               modes)  1047,  1048  and 1049 which have the same effect as the
               original 47 control sequence.  The default for this resource is
               "false".

       titleModes (class TitleModes)
               Tells xterm whether to accept or return window- and icon-labels
               in ISO-8859-1 (the default) or UTF-8.  Either can be encoded in
               hexadecimal.  The default for this resource is "0".

               Each bit (bit "0" is 1, bit "1" is 2, etc.)  corresponds to one
               of the parameters set by the title modes control sequence:

               0    Set window/icon labels using hexadecimal

               1    Query window/icon labels using hexadecimal

               2    Set window/icon labels using  UTF-8  (overrides  utf8Title
                    resource).

               3    Query window/icon labels using UTF-8

       translations (class Translations)
               Specifies  the  key  and button bindings for menus, selections,
               "programmed strings", etc.  The  translations  resource,  which
               provides much of xterm's configurability, is a feature of the X
               Toolkit Intrinsics library (Xt).  See the ACTIONS section.

       trimSelection (class TrimSelection)
               If you set highlightSelection, you can see the  text  which  is
               selected,  including  any trailing spaces.  Clearing the screen
               (or a line) resets it to a state containing  no  spaces.   Some
               lines  may  contain  trailing spaces when an application writes
               them to the screen.  However, you may not wish to  paste  lines
               with  trailing  spaces.   If  this resource is true, xterm will
               trim trailing spaces from text which is selected.  It does  not
               affect  spaces which result in a wrapped line, nor will it trim
               the trailing newline  from  your  selection.   The  default  is
               "false".

       underLine (class UnderLine)
               This specifies whether or not text with the underline attribute
               should be underlined.  It may be desirable to disable underlin-
               ing  when color is being used for the underline attribute.  The
               default is "true".

       useClipping (class UseClipping)
               Tell xterm whether to use clipping to keep from producing  dots
               outside  the text drawing area.  Originally used to work around
               for overstriking effects, this is also needed to work with some
               incorrectly-sized fonts.  The default is "true".

       utf8 (class Utf8)
               This  specifies  whether  xterm will run in UTF-8 mode.  If you
               set this resource, xterm also sets the wideChars resource as  a
               side-effect.  The resource can be set via the menu entry "UTF-8
               Encoding".  The default is "default".

               Xterm accepts either a keyword (ignoring case)  or  the  number
               shown in parentheses:

               false (0)
                  UTF-8  mode  is  initially off.  The command-line option +u8
                  sets the resource to this value.  Escape sequences for turn-
                  ing UTF-8 mode on/off are allowed.

               true (1)
                  UTF-8  mode  is  initially on.  Escape sequences for turning
                  UTF-8 mode on/off are allowed.

               always (2)
                  The command-line option -u8 sets the resource to this value.
                  Escape sequences for turning UTF-8 mode on/off are ignored.

               default (3)
                  This  is  the  default value of the resource.  It is changed
                  during  initialization  depending  on  whether  the   locale
                  resource  was  set,  to  false  (0)  or always (2).  See the
                  locale  resource  for  additional  discussion  of  non-UTF-8
                  locales.

               If  you  want  to  set  the value of utf8, it should be in this
               range.  Other nonzero values are treated the same as "1", i.e.,
               UTF-8  mode  is  initially on, and escape sequences for turning
               UTF-8 mode on/off are allowed.

       utf8Fonts (class Utf8Fonts)
               See the discussion of  the  locale  resource.   This  specifies
               whether  xterm will use UTF-8 fonts specified via resource pat-
               terns such as "*vt100.utf8Fonts.font"  or  normal  (ISO-8859-1)
               fonts  via patterns such as "*vt100.font".  The resource can be
               set  via  the  menu  entry  "UTF-8  Fonts".   The  default   is
               "default".

               Xterm  accepts  either  a keyword (ignoring case) or the number
               shown in parentheses:

               false (0)
                      Use the ISO-8859-1 fonts.  The menu  entry  is  enabled,
                      allowing the choice of fonts to be changed at runtime.

               true (1)
                      Use  the UTF-8 fonts.  The menu entry is enabled, allow-
                      ing the choice of fonts to be changed at runtime.

               always (2)
                      Always use the UTF-8 fonts.  This also disables the menu
                      entry.

               default (3)
                      At  startup,  the  resource  is  set  to  true or false,
                      according to the effective value of the utf8 resource.

       utf8Latin1 (class Utf8Latin1)
               If true, allow an ISO-8859-1 normal font to be combined with an
               ISO-10646-1  font  if the latter is given via the -fw option or
               its corresponding resource value.  The default is "false".

       utf8SelectTypes (class Utf8SelectTypes)
               Override   xterm's   default   selection   target   list   (see
               SELECT/PASTE)  for  selections  in wide-character (UTF-8) mode.
               The default is an empty string, i.e., "", which does not  over-
               ride anything.

       utf8Title (class Utf8Title)
               Applications  can  set  xterm's  title  by  writing  a  control
               sequence.  Normally this control  sequence  follows  the  VT220
               convention,  which  encodes the string in ISO-8859-1 and allows
               for an 8-bit string terminator.  If xterm is started in a UTF-8
               locale,  it  translates  the ISO-8859-1 string to UTF-8 to work
               with the X libraries which assume the string is UTF-8.

               However, some users may wish to write a title string encoded in
               UTF-8.   The  window  manager is responsible for drawing window
               titles.  Some window managers (not all) support UTF-8  encoding
               of  window  titles.  Set this resource to "true" to allow UTF-8
               encoded title strings.  That cancels the translation to  UTF-8,
               allowing UTF-8 strings to be displayed as is.

               This  feature is available as a menu entry, since it is related
               to the particular applications you are  running  within  xterm.
               You  can  also  use  a  control sequence (see the discussion of
               "Title Modes" in the control sequences  document),  to  set  an
               equivalent  flag.  The titleModes resource sets the same value,
               which overrides this resource.

               The default is "false".

       veryBoldColors (class VeryBoldColors)
               Specifies whether to combine video attributes with colors spec-
               ified  by colorBD, colorBL, colorIT, colorRV, and colorUL.  The
               resource value is the sum of values for each attribute:
                 1 for reverse,
                 2 for underline,
                 4 for bold,
                 8 for blink, and
                 512 for italic

               The default is "0".

       visualBell (class VisualBell)
               Specifies whether or not a visible bell (i.e., flashing) should
               be  used instead of an audible bell when Control-G is received.
               The default is "false", which tells xterm  to  use  an  audible
               bell.

       visualBellDelay (class VisualBellDelay)
               Number  of milliseconds to delay when displaying a visual bell.
               Default is 100.  If set to zero, no visual bell  is  displayed.
               This  is useful for very slow displays, e.g., an LCD display on
               a laptop.

       visualBellLine (class VisualBellLine)
               Specifies whether to flash only the current line when  display-
               ing  a  visual bell rather than flashing the entire screen: The
               default is "false", which  tells  xterm  to  flash  the  entire
               screen.

       vt100Graphics (class VT100Graphics)
               This specifies whether xterm will interpret VT100 graphic char-
               acter escape sequences while in UTF-8  mode.   The  default  is
               "true", to provide support for various legacy applications.

       wideBoldFont (class WideBoldFont)
               This  option  specifies the font to be used for displaying bold
               wide text.  By default, it will attempt to use a font twice  as
               wide  as  the  font that will be used to draw bold text.  If no
               double-width font is found, it will  improvise,  by  stretching
               the bold font.

       wideChars (class WideChars)
               Specifies  if  xterm  should  respond to control sequences that
               process 16-bit characters.  The default is "false".

       wideFont (class WideFont)
               This option specifies the font to be used for  displaying  wide
               text.   By default, it will attempt to use a font twice as wide
               as the font that will be used to draw normal text.  If no  dou-
               ble-width  font  is found, it will improvise, by stretching the
               normal font.

       ximFont (class XimFont)
               This option specifies the font to be used  for  displaying  the
               preedit string in the "OverTheSpot" input method.

               In  "OverTheSpot"  preedit  type,  the  preedit (preconversion)
               string is displayed at the position of the cursor.  It  is  the
               XIM server's responsibility to display the preedit string.  The
               XIM client must inform the XIM server of the  cursor  position.
               For  best  results, the preedit string must be displayed with a
               proper font.  Therefore, xterm informs the XIM  server  of  the
               proper  font.   The  font  is be supplied by a "fontset", whose
               default value is "*".  This matches every font, the  X  library
               automatically  chooses fonts with proper charsets.  The ximFont
               resource is provided to override this default font setting.


Tek4014 Widget Resources

       The following resources are specified as part  of  the  tek4014  widget
       (class   Tek4014).    These   are   specified   by   patterns  such  as
       "XTerm.tek4014.NAME":

       font2 (class Font)
               Specifies font number 2 to use in the Tektronix window.

       font3 (class Font)
               Specifies font number 3 to use in the Tektronix window.

       fontLarge (class Font)
               Specifies the large font to use in the Tektronix window.

       fontSmall (class Font)
               Specifies the small font to use in the Tektronix window.

       ginTerminator (class GinTerminator)
               Specifies what character(s) should follow a GIN report or  sta-
               tus  report.  The possibilities are "none", which sends no ter-
               minating characters, "CRonly", which sends  CR,  and  "CR&EOT",
               which sends both CR and EOT.  The default is "none".

       height (class Height)
               Specifies the height of the Tektronix window in pixels.

       initialFont (class InitialFont)
               Specifies  which  of the four Tektronix fonts to use initially.
               Values are the  same  as  for  the  set-tek-text  action.   The
               default is "large".

       width (class Width)
               Specifies the width of the Tektronix window in pixels.


Menu Resources

       The resources that may be specified for the various menus are described
       in the documentation for the Athena SimpleMenu widget.   The  name  and
       classes  of  the  entries  in  each  of  the  menus  are  listed below.
       Resources named "lineN" where N is a number are separators  with  class
       SmeLine.

       As  with all X resource-based widgets, the labels mentioned are custom-
       ary defaults for the application.

       The Main Options menu (widget name mainMenu) has the following entries:

       toolbar (class SmeBSB)
               This entry invokes the set-toolbar(toggle) action.

       securekbd (class SmeBSB)
               This entry invokes the secure() action.

       allowsends (class SmeBSB)
               This entry invokes the allow-send-events(toggle) action.

       redraw (class SmeBSB)
               This entry invokes the redraw() action.

       logging (class SmeBSB)
               This entry invokes the logging(toggle) action.

       print-immediate (class SmeBSB)
               This entry invokes the print-immediate() action.

       print-on-error (class SmeBSB)
               This entry invokes the print-on-error() action.

       print (class SmeBSB)
               This entry invokes the print() action.

       print-redir (class SmeBSB)
               This entry invokes the print-redir() action.

       8-bit-control (class SmeBSB)
               This entry invokes the set-8-bit-control(toggle) action.

       backarrow key (class SmeBSB)
               This entry invokes the set-backarrow(toggle) action.

       num-lock (class SmeBSB)
               This entry invokes the set-num-lock(toggle) action.

       alt-esc (class SmeBSB)
               This entry invokes the alt-sends-escape(toggle) action.

       meta-esc (class SmeBSB)
               This entry invokes the meta-sends-escape(toggle) action.

       delete-is-del (class SmeBSB)
               This entry invokes the delete-is-del(toggle) action.

       oldFunctionKeys (class SmeBSB)
               This entry invokes the old-function-keys(toggle) action.

       hpFunctionKeys (class SmeBSB)
               This entry invokes the hp-function-keys(toggle) action.

       scoFunctionKeys (class SmeBSB)
               This entry invokes the sco-function-keys(toggle) action.

       sunFunctionKeys (class SmeBSB)
               This entry invokes the sun-function-keys(toggle) action.

       sunKeyboard (class SmeBSB)
               This entry invokes the sunKeyboard(toggle) action.

       suspend (class SmeBSB)
               This entry invokes the send-signal(tstp) action on systems that
               support job control.

       continue (class SmeBSB)
               This entry invokes the send-signal(cont) action on systems that
               support job control.

       interrupt (class SmeBSB)
               This entry invokes the send-signal(int) action.

       hangup (class SmeBSB)
               This entry invokes the send-signal(hup) action.

       terminate (class SmeBSB)
               This entry invokes the send-signal(term) action.

       kill (class SmeBSB)
               This entry invokes the send-signal(kill) action.

       quit (class SmeBSB)
               This entry invokes the quit() action.

       The VT Options menu (widget name vtMenu) has the following entries:

       scrollbar (class SmeBSB)
               This entry invokes the set-scrollbar(toggle) action.

       jumpscroll (class SmeBSB)
               This entry invokes the set-jumpscroll(toggle) action.

       reversevideo (class SmeBSB)
               This entry invokes the set-reverse-video(toggle) action.

       autowrap (class SmeBSB)
               This entry invokes the set-autowrap(toggle) action.

       reversewrap (class SmeBSB)
               This entry invokes the set-reversewrap(toggle) action.

       autolinefeed (class SmeBSB)
               This entry invokes the set-autolinefeed(toggle) action.

       appcursor (class SmeBSB)
               This entry invokes the set-appcursor(toggle) action.

       appkeypad (class SmeBSB)
               This entry invokes the set-appkeypad(toggle) action.

       scrollkey (class SmeBSB)
               This entry invokes the set-scroll-on-key(toggle) action.

       scrollttyoutput (class SmeBSB)
               This entry invokes the set-scroll-on-tty-output(toggle) action.

       allow132 (class SmeBSB)
               This entry invokes the set-allow132(toggle) action.

       cursesemul (class SmeBSB)
               This entry invokes the set-cursesemul(toggle) action.

       visualbell (class SmeBSB)
               This entry invokes the set-visualbell(toggle) action.

       bellIsUrgent (class SmeBSB)
               This entry invokes the set-bellIsUrgent(toggle) action.

       poponbell (class SmeBSB)
               This entry invokes the set-poponbell(toggle) action.

       cursorblink (class SmeBSB)
               This entry invokes the set-cursorblink(toggle) action.

       titeInhibit (class SmeBSB)
               This entry invokes the set-titeInhibit(toggle) action.

       activeicon (class SmeBSB)
               This entry toggles active icons on and off if this feature  was
               compiled  into  xterm.  It is enabled only if xterm was started
               with the command line option +ai or the activeIcon resource  is
               set to "true".

       softreset (class SmeBSB)
               This entry invokes the soft-reset() action.

       hardreset (class SmeBSB)
               This entry invokes the hard-reset() action.

       clearsavedlines (class SmeBSB)
               This entry invokes the clear-saved-lines() action.

       tekshow (class SmeBSB)
               This entry invokes the set-visibility(tek,toggle) action.

       tekmode (class SmeBSB)
               This entry invokes the set-terminal-type(tek) action.

       vthide (class SmeBSB)
               This entry invokes the set-visibility(vt,off) action.

       altscreen (class SmeBSB)
               This entry invokes the set-altscreen(toggle) action.

       sixelScrolling (class SmeBSB)
               This entry invokes the set-sixel-scrolling(toggle) action.

       The VT Fonts menu (widget name fontMenu) has the following entries:

       fontdefault (class SmeBSB)
               This  entry invokes the set-vt-font(d) action, setting the font
               using the font (default) resource, e.g., "Default" in the menu.

       font1 (class SmeBSB)
               This entry invokes the set-vt-font(1) action, setting the  font
               using the font1 resource, e.g., "Unreadable" in the menu.

       font2 (class SmeBSB)
               This  entry invokes the set-vt-font(2) action, setting the font
               using the font2 resource, e.g., "Tiny" in the menu.

       font3 (class SmeBSB)
               This entry invokes the set-vt-font(3) action, setting the  font
               using the font3 resource, e.g., "Small" in the menu.

       font4 (class SmeBSB)
               This  entry invokes the set-vt-font(4) action, letting the font
               using the font4 resource, e.g., "Medium" in the menu.

       font5 (class SmeBSB)
               This entry invokes the set-vt-font(5) action, letting the  font
               using the font5 resource, e.g., "Large" in the menu.

       font6 (class SmeBSB)
               This  entry invokes the set-vt-font(6) action, letting the font
               using the font6 resource, e.g., "Huge" in the menu.

       fontescape (class SmeBSB)
               This entry invokes the set-vt-font(e) action.

       fontsel (class SmeBSB)
               This entry invokes the set-vt-font(s) action.

       font-linedrawing (class SmeBSB)
               This entry invokes the set-font-linedrawing(s) action.

       font-packed (class SmeBSB)
               This entry invokes the set-font-packed(s) action.

       font-doublesize (class SmeBSB)
               This entry invokes the set-font-doublesize(s) action.

       render-font (class SmeBSB)
               This entry invokes the set-render-font(s) action.

       utf8-mode (class SmeBSB)
               This entry invokes the set-utf8-mode(s) action.

       utf8-title (class SmeBSB)
               This entry invokes the set-utf8-title(s) action.

       The TEK Options menu (widget name tekMenu) has the following entries:

       tektextlarge (class SmeBSB)
               This entry invokes the set-tek-text(large) action.

       tektext2 (class SmeBSB)
               This entry invokes the set-tek-text(2) action.

       tektext3 (class SmeBSB)
               This entry invokes the set-tek-text(3) action.

       tektextsmall (class SmeBSB)
               This entry invokes the set-tek-text(small) action.

       tekpage (class SmeBSB)
               This entry invokes the tek-page() action.

       tekreset (class SmeBSB)
               This entry invokes the tek-reset() action.

       tekcopy (class SmeBSB)
               This entry invokes the tek-copy() action.

       vtshow (class SmeBSB)
               This entry invokes the set-visibility(vt,toggle) action.

       vtmode (class SmeBSB)
               This entry invokes the set-terminal-type(vt) action.

       tekhide (class SmeBSB)
               This entry invokes the set-visibility(tek,toggle) action.


Scrollbar Resources

       The following resources  are  useful  when  specified  for  the  Athena
       Scrollbar widget:

       thickness (class Thickness)
               Specifies the width in pixels of the scrollbar.

       background (class Background)
               Specifies the color to use for the background of the scrollbar.

       foreground (class Foreground)
               Specifies the color to use for the foreground of the scrollbar.
               The "thumb" of the scrollbar is a simple  checkerboard  pattern
               alternating pixels for foreground and background color.


POINTER USAGE

       Once  the  VT102 window is created, xterm allows you to select text and
       copy it within the same or other windows.


Selection

       The selection functions are invoked when the pointer buttons  are  used
       with  no  modifiers,  and when they are used with the "shift" key.  The
       assignment of the functions described below to keys and buttons may  be
       changed through the resource database; see ACTIONS below.

       Pointer  button  one  (usually  left) is used to save text into the cut
       buffer.  Move the cursor to beginning of the text, and  then  hold  the
       button  down  while  moving  the  cursor  to  the end of the region and
       releasing the button.  The selected text is highlighted and is saved in
       the global cut buffer and made the PRIMARY selection when the button is
       released.  Normally (but see the discussion of on2Clicks, etc):

       o   Double-clicking selects by words.

       o   Triple-clicking selects by lines.

       o   Quadruple-clicking goes back to characters, etc.

       Multiple-click is determined by the time from button up to button down,
       so  you  can  change  the  selection unit in the middle of a selection.
       Logical words and lines selected by double- or triple-clicking may wrap
       across  more than one screen line if lines were wrapped by xterm itself
       rather than by the application running in the window.  If the  key/but-
       ton  bindings  specify  that  an  X selection is to be made, xterm will
       leave the selected text highlighted for as long as it is the  selection
       owner.

       Pointer  button two (usually middle) "types" (pastes) the text from the
       PRIMARY selection, if any, otherwise from the cut buffer, inserting  it
       as keyboard input.

       Pointer  button  three  (usually  right) extends the current selection.
       (Without loss of generality, you can swap "right" and "left" everywhere
       in  the  rest of this paragraph.)  If pressed while closer to the right
       edge of the selection than the left,  it  extends/contracts  the  right
       edge  of  the  selection.   If you contract the selection past the left
       edge of the selection, xterm assumes you really meant  the  left  edge,
       restores  the  original selection, then extends/contracts the left edge
       of the selection.  Extension starts in the selection unit mode that the
       last selection or extension was performed in; you can multiple-click to
       cycle through them.

       By cutting and pasting pieces of text without trailing new  lines,  you
       can  take text from several places in different windows and form a com-
       mand to the shell, for example, or  take  output  from  a  program  and
       insert  it  into  your favorite editor.  Since cut buffers are globally
       shared among different applications, you may regard each  as  a  "file"
       whose contents you know.  The terminal emulator and other text programs
       should be treating it as if it were a text  file,  i.e.,  the  text  is
       delimited by new lines.


Scrolling

       The  scroll  region  displays the position and amount of text currently
       showing in the window (highlighted) relative  to  the  amount  of  text
       actually saved.  As more text is saved (up to the maximum), the size of
       the highlighted area decreases.

       Clicking button one with the pointer in the  scroll  region  moves  the
       adjacent line to the top of the display window.

       Clicking  button three moves the top line of the display window down to
       the pointer position.

       Clicking button two moves the display to a position in the  saved  text
       that corresponds to the pointer's position in the scrollbar.


Tektronix Pointer

       Unlike  the VT102 window, the Tektronix window does not allow the copy-
       ing of text.  It does allow Tektronix GIN mode, and in  this  mode  the
       cursor  will  change  from  an arrow to a cross.  Pressing any key will
       send that key and the current coordinate of the cross cursor.  Pressing
       button  one,  two,  or three will return the letters "l", "m", and "r",
       respectively.  If the "shift" key is pressed when a pointer  button  is
       pressed, the corresponding upper case letter is sent.  To distinguish a
       pointer button from a key, the high bit of the character  is  set  (but
       this  is  bit is normally stripped unless the terminal mode is RAW; see
       tty(4) for details).


SELECT/PASTE

       X clients provide select and paste support by  responding  to  requests
       conveyed by the server.


Primary

       When  configured  to use the primary selection, (the default) xterm can
       provide the selection data in  ways  which  help  to  retain  character
       encoding information as it is pasted.

       A  user "selects" text on xterm, which highlights the selected text.  A
       subsequent "paste" to another client forwards a request to  the  client
       owning  the  selection.   If xterm owns the primary selection, it makes
       the data available in the form of one or more "selection targets".   If
       it  does  not own the primary selection, e.g., if it has released it or
       another client has asserted ownership, it relies on cut-buffers to pass
       the  data.   But  cut-buffers handle only ISO-8859-1 data (officially -
       some clients ignore the rules).


Clipboard

       When configured to use the clipboard (see resource  selectToClipboard),
       the  problem  with  persistence  of  ownership is bypassed.  Otherwise,
       there is no difference regarding the  data  which  can  be  passed  via
       selection.

       The  PRIMARY  token  is  a  standard X feature, documented in the ICCCM
       (Inter-Client Communication Conventions Manual), which states

              The selection named by the atom PRIMARY is used for all commands
              that  take  only a single argument and is the principal means of
              communication between clients that use the selection mechanism.

       However, many applications use CLIPBOARD in imitation of other  window-
       ing  systems.   The  selectToClipboard resource (and corresponding menu
       entry Select to Clipboard) introduce the SELECT token  (known  only  to
       xterm) which chooses between the PRIMARY and CLIPBOARD tokens.

       Without  using  this feature, one can use workarounds such as the xclip
       program to show the contents of the X clipboard within an xterm window.


Selection Targets

       The different types of data which are passed depend on what the receiv-
       ing client asks for.  These are termed selection targets.

       When  asking for the selection data, xterm tries the following types in
       this order:

              UTF8_STRING
                   This is an XFree86 extension, which denotes that  the  data
                   is encoded in UTF-8.  When xterm is built with wide-charac-
                   ter support, it both accepts and provides this type.

              TEXT the text is in the encoding which corresponds to your  cur-
                   rent locale.

              COMPOUND_TEXT
                   this  is  a format for multiple character set data, such as
                   multi-lingual text.  It can store UTF-8 data as  a  special
                   case.

              STRING
                   This is Latin 1 (ISO-8859-1) data.

       The  middle  two (TEXT and COMPOUND_TEXT) are added if xterm is config-
       ured with the i18nSelections resource set to "true".

       UTF8_STRING is preferred (therefore first  in  the  list)  since  xterm
       stores text as Unicode data when running in wide-character mode, and no
       translation is needed.  On the other hand, TEXT and  COMPOUND_TEXT  may
       require  translation.   If  the  translation  is  incomplete, they will
       insert X's "defaultString" whose value cannot be set, and may simply be
       empty.   Xterm's defaultString resource specifies the string to use for
       incomplete translations of the UTF8_STRING.

       You can alter the types which xterm tries using the eightBitSelectTypes
       or  utf8SelectTypes  resources.  For instance, you might have some spe-
       cific locale setting which does not use UTF-8 encoding.   The  resource
       value is a comma-separated list of the selection targets, which consist
       of the names shown.  You can use the special name I18N  to  denote  the
       optional  inclusion  of  TEXT and COMPOUND_TEXT.  The names are matched
       ignoring case, and  can  be  abbreviated.   The  default  list  can  be
       expressed in several ways, e.g.,

              UTF8_STRING,I18N,STRING
              utf8,i18n,string
              u,i,s


MENUS

       Xterm  has  four  menus, named mainMenu, vtMenu, fontMenu, and tekMenu.
       Each menu pops up under the correct  combinations  of  key  and  button
       presses.  Each menu is divided into sections, separated by a horizontal
       line.  Some menu entries correspond to modes that can  be  altered.   A
       check  mark appears next to a mode that is currently active.  Selecting
       one of these modes toggles its state.  Other menu entries are commands;
       selecting one of these performs the indicated function.

       All  of  the  menu entries correspond to X actions.  In the list below,
       the menu label is shown followed by the action's name in parenthesis.


Main Options

       The xterm mainMenu pops up when the "control" key  and  pointer  button
       one  are  pressed  in a window.  This menu contains items that apply to
       both the VT102 and Tektronix windows.  There are several sections:

       Commands for managing X events:

              Toolbar
                     Clicking on the "Toolbar" menu entry hides the toolbar if
                     it is visible, and shows it if it is not.

              Secure Keyboard (securekbd)
                     The  Secure Keyboard mode is helpful when typing in pass-
                     words or other sensitive data in an unsecure environment;
                     see SECURITY below (but read the limitations carefully).

              Allow SendEvents (allowsends)
                     Specifies  whether or not synthetic key and button events
                     generated using the X protocol SendEvent  request  should
                     be  interpreted  or  discarded.   This corresponds to the
                     allowSendEvents resource.

              Redraw Window (redraw)
                     Forces the X display to repaint; useful in some  environ-
                     ments.

       Commands for capturing output:

              Log to File (logging)
                     Captures  text sent to the screen in a logfile, as in the
                     -l logging option.

              Print-All Immediately
                     Invokes the print-immediate action, sending the  text  of
                     the  current  window  directly to a file, as specified by
                     the printFileImmediate, printModeImmediate and  printOpt-
                     sImmediate resources.

              Print-All on Error
                     Invokes  the  print-on-error action, which toggles a flag
                     telling xterm that if it exits with an X error,  to  send
                     the  text  of  the  current window directly to a file, as
                     specified by  the  printFileXError,  printModeXError  and
                     printOptsXError resources.

              Print Window (print)
                     Sends the text of the current window to the program given
                     in the printerCommand resource.

              Redirect to Printer (print-redir)
                     This sets the printerControlMode to 0 or 2.  You can  use
                     this to turn the printer on as if an application had sent
                     the appropriate control sequence.  It is also useful  for
                     switching  the  printer off if an application turns it on
                     without resetting the print control mode.

       Modes for setting keyboard style:

              8-Bit Controls (8-bit-control)
                     Enabled for VT220 emulation, this controls whether  xterm
                     will send 8-bit control sequences rather than using 7-bit
                     (ASCII) controls, e.g.,  sending  a  byte  in  the  range
                     128-159  rather  than  the escape character followed by a
                     second byte.  Xterm  always  interprets  both  8-bit  and
                     7-bit  control  sequences (see the document Xterm Control
                     Sequences).   This  corresponds  to  the  eightBitControl
                     resource.

              Backarrow Key (BS/DEL) (backarrow key)
                     Modifies  the  behavior  of  the backarrow key, making it
                     transmit either a backspace (8) or delete  (127)  charac-
                     ter.  This corresponds to the backarrowKey resource.

              Alt/NumLock Modifiers (num-lock)
                     Controls the treatment of Alt- and NumLock-key modifiers.
                     This corresponds to the numLock resource.

              Meta Sends Escape (meta-esc)
                     Controls whether Meta keys are converted into a two-char-
                     acter sequence with the character itself preceded by ESC.
                     This corresponds to the metaSendsEscape resource.

              Delete is DEL (delete-is-del)
                     Controls whether the Delete key  on  the  editing  keypad
                     should  send  DEL  (127) or the VT220-style Remove escape
                     sequence.  This corresponds to the deleteIsDEL resource.

              Old Function-Keys (oldFunctionKeys)

              HP Function-Keys (hpFunctionKeys)

              SCO Function-Keys (scoFunctionKeys)

              Sun Function-Keys (sunFunctionKeys)

              VT220 Keyboard (sunKeyboard)
                     These act as a radio-button, selecting one style for  the
                     keyboard   layout.   It  corresponds  to  more  than  one
                     resource setting: sunKeyboard, sunFunctionKeys,  scoFunc-
                     tionKeys and hpFunctionKeys.

       Commands for process signalling:

              Send STOP Signal (suspend)

              Send CONT Signal (continue)

              Send INT Signal (interrupt)

              Send HUP Signal (hangup)

              Send TERM Signal (terminate)

              Send KILL Signal (kill)
                     These  send the SIGTSTP, SIGCONT, SIGINT, SIGHUP, SIGTERM
                     and SIGKILL signals respectively, to the process group of
                     the process running under xterm (usually the shell).  The
                     SIGCONT function is especially useful  if  the  user  has
                     accidentally typed CTRL-Z, suspending the process.

              Quit (quit)
                     Stop  processing  X  events  except  to support the -hold
                     option, and then send a  SIGHUP  signal  to  the  process
                     group  of  the  process  running under xterm (usually the
                     shell).


VT Options

       The vtMenu sets various modes in the VT102 emulation, and is popped  up
       when  the "control" key and pointer button two are pressed in the VT102
       window.

       VT102/VT220 Modes:

              Enable Scrollbar (scrollbar)
                     Enable (or disable) the scrollbar.  This  corresponds  to
                     the -sb option and the scrollBar resource.

              Enable Jump Scroll (jumpscroll)
                     Enable  (or disable) jump scrolling.  This corresponds to
                     the -j option and the jumpScroll resource.

              Enable Reverse Video (reversevideo)
                     Enable (or disable) reverse-video.  This  corresponds  to
                     the -rv option and the reverseVideo resource.

              Enable Auto Wraparound (autowrap)
                     Enable (or disable) auto-wraparound.  This corresponds to
                     the -aw option and the autoWrap resource.

              Enable Reverse Wraparound (reversewrap)
                     Enable (or disable) reverse wraparound.  This corresponds
                     to the -rw option and the reverseWrap resource.

              Enable Auto Linefeed (autolinefeed)
                     Enable (or disable) auto-linefeed.  This is the VT102 NEL
                     function, which causes the emulator to  emit  a  linefeed
                     after  each  carriage  return.  There is no corresponding
                     command-line option or resource setting.

              Enable Application Cursor Keys (appcursor)
                     Enable (or disable) application cursor keys.  This corre-
                     sponds  to  the  appcursorDefault  resource.  There is no
                     corresponding command-line option.

              Enable Application Keypad (appkeypad)
                     Enable (or disable) application keypad keys.  This corre-
                     sponds  to  the  appkeypadDefault  resource.  There is no
                     corresponding command-line option.

              Scroll to Bottom on Key Press (scrollkey)
                     Enable (or  disable)  scrolling  to  the  bottom  of  the
                     scrolling  region on a keypress.  This corresponds to the
                     -sk option and the scrollKey resource.

                     As a special case, the XON /  XOFF  keys  (control/S  and
                     control/Q) are ignored.

              Scroll to Bottom on Tty Output (scrollttyoutput)
                     Enable  (or  disable)  scrolling  to  the  bottom  of the
                     scrolling region on output to the terminal.  This  corre-
                     sponds   to   the  -si  option  and  the  scrollTtyOutput
                     resource.

              Allow 80/132 Column Switching (allow132)
                     Enable (or disable) switching between 80 and 132 columns.
                     This   corresponds  to  the  -132  option  and  the  c132
                     resource.

              Keep Selection (keepSelection)
                     Tell xterm whether to disown the selection when it  stops
                     highlighting  it,  e.g., when an application modifies the
                     display so that it no longer matches the text  which  has
                     been  highlighted.  As long as xterm continues to own the
                     selection, it can provide the corresponding text to other
                     clients  via  cut/paste.  This corresponds to the keepSe-
                     lection resource.  There is no corresponding command-line
                     option.

              Select to Clipboard (selectToClipboard)
                     Tell  xterm  whether  to use the PRIMARY or CLIPBOARD for
                     SELECT tokens in the  translations  resource  which  maps
                     keyboard and mouse actions to select/paste actions.  This
                     corresponds to the selectToClipboard resource.  There  is
                     no corresponding command-line option.

              Enable Visual Bell (visualbell)
                     Enable (or disable) visible bell (i.e., flashing) instead
                     of an audible bell.  This corresponds to the  -vb  option
                     and the visualBell resource.

              Enable Bell Urgency (bellIsUrgent)
                     Enable (or disable) Urgency window manager hint when Con-
                     trol-G is received.  This corresponds to the bellIsUrgent
                     resource.

              Enable Pop on Bell (poponbell)
                     Enable  (or disable) raising of the window when Control-G
                     is received.  This corresponds to the -pop option and the
                     popOnBell resource.

              Enable Blinking Cursor (cursorblink)
                     Enable  (or  disable)  the blinking-cursor feature.  This
                     corresponds  to  the  -bc  option  and  the   cursorBlink
                     resource.  There is also an escape sequence (see the doc-
                     ument Xterm Control Sequences).  The menu entry  and  the
                     escape  sequence  states  are XOR'd: if both are enabled,
                     the cursor will not blink, if only one  is  enabled,  the
                     cursor will blink.

              Enable Alternate Screen Switching (titeInhibit)
                     Enable  (or  disable)  switching  between  the normal and
                     alternate screens.  This corresponds to  the  titeInhibit
                     resource.  There is no corresponding command-line option.

              Enable Active Icon (activeicon)
                     Enable (or disable) the active-icon feature.  This corre-
                     sponds to the -ai option and the activeIcon resource.

              Sixel Scrolling (sixelScrolling)
                     When enabled, sixel graphics are positioned at  the  cur-
                     rent text cursor location, scroll the image vertically if
                     larger than the screen, and leave the text cursor at  the
                     start  of  the  next  complete  line after the image when
                     returning to text mode (this is the default).  When  dis-
                     abled, sixel graphics are positioned at the upper left of
                     the screen, are cropped to fit the  screen,  and  do  not
                     affect the text cursor location.  This corresponds to the
                     sixelScrolling resource.  There is no corresponding  com-
                     mand-line option.

              Private Color Registers (privateColorRegisters)
                     When  enabled,  each graphic image uses a separate set of
                     color registers, so that it  essentially  has  a  private
                     palette  (this  is  the  default).  If it is not set, all
                     graphics images share a common set of registers which  is
                     how  sixel  and ReGIS graphics worked on actual hardware.
                     The default is likely a more useful mode on modern  True-
                     Color hardware.  This corresponds to the privateColorReg-
                     isters resource.  There is no corresponding  command-line
                     option.

       VT102/VT220 Commands:

              Do Soft Reset (softreset)
                     Reset  scroll  regions.  This can be convenient when some
                     program has  left  the  scroll  regions  set  incorrectly
                     (often a problem when using VMS or TOPS-20).  This corre-
                     sponds to the VT220 DECSTR control sequence.

              Do Full Reset (hardreset)
                     The full reset entry will clear the screen, reset tabs to
                     every  eight  columns, and reset the terminal modes (such
                     as wrap and smooth scroll) to their initial  states  just
                     after  xterm  has  finished  processing  the command line
                     options.  This  corresponds  to  the  VT102  RIS  control
                     sequence,  with  a few obvious differences.  For example,
                     your session is not disconnected as a  real  VT102  would
                     do.

              Reset and Clear Saved Lines (clearsavedlines)
                     Perform a full reset, and also clear the saved lines.

       Commands for setting the current screen:

              Show Tek Window (tekshow)
                     When enabled, pops the Tektronix 4014 window up (makes it
                     visible).  When disabled, hides the Tektronix  4014  win-
                     dow.

              Switch to Tek Mode (tekmode)
                     When  enabled, pops the Tektronix 4014 window up if it is
                     not already visible, and switches  the  input  stream  to
                     that  window.   When  disabled,  hides the Tektronix 4014
                     window and switches input back to the VTxxx window.

              Hide VT Window (vthide)
                     When enabled, hides the VTxxx window, shows the Tektronix
                     4014  window  if  it was not already visible and switches
                     the input stream to that window.   When  disabled,  shows
                     the  VTxxx  window, and switches the input stream to that
                     window.

              Show Alternate Screen (altscreen)
                     When enabled, shows the alternate screen.  When disabled,
                     shows the normal screen.  Note that the normal screen may
                     have saved lines; the alternate screen does not.


VT Fonts

       The fontMenu pops up when when the "control"  key  and  pointer  button
       three are pressed in a window.  It sets the font used in the VT102 win-
       dow, or modifies the way the font is specified or displayed.  There are
       several sections.

       The  first section allows you to select the font from a set of alterna-
       tives:

              Default (fontdefault)
                     Set the font to the default,  i.e.,  that  given  by  the
                     *VT100.font resource.

              Unreadable (font1)
                     Set the font to that given by the *VT100.font1 resource.

              Tiny (font2)
                     Set the font to that given by the *VT100.font2 resource.

              Small (font3)
                     Set the font to that given by the *VT100.font3 resource.

              Medium (font4)
                     Set the font to that given by the *VT100.font4 resource.

              Large (font5)
                     Set the font to that given by the *VT100.font5 resource.

              Huge (font6)
                     Set the font to that given by the *VT100.font6 resource.

              Escape Sequence
                     This allows you to set the font last specified by the Set
                     Font escape sequence  (see  the  document  Xterm  Control
                     Sequences).

              Selection (fontsel)
                     This  allows  you  to  set the font specified the current
                     selection as a font name (if  the  PRIMARY  selection  is
                     owned).

       The second section allows you to modify the way it is displayed:

              Bold Fonts
                     This  is  normally  checked  (enabled).   When unchecked,
                     xterm will not use bold fonts.  The  setting  corresponds
                     to the allowBoldFonts resource.

              Line-Drawing Characters (font-linedrawing)
                     When  set, tells xterm to draw its own line-drawing char-
                     acters.  Otherwise  it  relies  on  the  font  containing
                     these.  Compare to the forceBoxChars resource.

              Packed Font (font-packed)
                     When set, tells xterm to use the minimum glyph-width from
                     a font when displaying characters.  Use the maximum width
                     (unchecked)  to help display proportional fonts.  Compare
                     to the forcePackedFont resource.

              Doublesized Characters (font-doublesize)
                     When set, xterm may ask the font server to produce scaled
                     versions  of the normal font, for VT102 double-size char-
                     acters.

       The third section allows you to modify the way it is specified:

              TrueType Fonts (render-font)
                     If the renderFont and corresponding resources  were  set,
                     this is a further control whether xterm will actually use
                     the Xft library calls to obtain a font.

              UTF-8 Encoding (utf8-mode)
                     This  controls  whether  xterm  uses  UTF-8  encoding  of
                     input/output.   It  is  useful  for temporarily switching
                     xterm to display text from an application which does  not
                     follow  the  locale settings.  It corresponds to the utf8
                     resource.

              UTF-8 Fonts (utf8-fonts)
                     This controls whether xterm uses UTF-8 fonts for display.
                     It  is  useful for temporarily switching xterm to display
                     text from an application which does not follow the locale
                     settings.  It combines the utf8 and utf8Fonts resources.

              UTF-8 Titles (utf8-titles)
                     This  controls  whether  xterm accepts UTF-8 encoding for
                     title control sequences.  It corresponds to the utf8Fonts
                     resource.

                     Initially the checkmark is set according to both the utf8
                     and utf8Fonts resource values.  If the latter is  set  to
                     "always",  the checkmark is disabled.  Likewise, if there
                     are no fonts given in the  utf8Fonts  subresources,  then
                     the checkmark also is disabled.

                     The standard XTerm app-defaults file defines both sets of
                     fonts, while the UXTerm app-defaults  file  defines  only
                     one  set.  Assuming the standard app-defaults files, this
                     command will launch xterm able to  switch  between  UTF-8
                     and ISO-8859-1 encoded fonts:

                         uxterm -class XTerm

              The fourth section allows you to enable or disable special oper-
              ations which can be controlled by writing  escape  sequences  to
              the  terminal.   These are disabled if the SendEvents feature is
              enabled:

              Allow Color Ops (allow-font-ops)
                     This corresponds to the allowColorOps  resource.   Enable
                     or disable control sequences that set/query the colors.

              Allow Font Ops (allow-font-ops)
                     This corresponds to the allowFontOps resource.  Enable or
                     disable control sequences that set/query the font.

              Allow Tcap Ops (allow-tcap-ops)
                     Enable or disable control sequences that query the termi-
                     nal's  notion  of its function-key strings, as termcap or
                     terminfo capabilities.  This corresponds to  the  allowT-
                     capOps resource.

              Allow Title Ops (allow-title-ops)
                     Enable  or disable control sequences that modify the win-
                     dow title or icon name.  This corresponds to the allowTi-
                     tleOps resource.

              Allow Window Ops (allow-window-ops)
                     Enable  or  disable extended window control sequences (as
                     used in dtterm).  This corresponds to the  allowWindowOps
                     resource.


TEK Options

       The  tekMenu  sets  various  modes  in  the Tektronix emulation, and is
       popped up when the "control" key and pointer button two are pressed  in
       the  Tektronix  window.   The current font size is checked in the modes
       section of the menu.

              Large Characters (tektextlarge)

              #2 Size Characters (tektext2)

              #3 Size Characters (tektext3)

              Small Characters (tektextsmall)

       Commands:

              PAGE (tekpage)
                     Clear the Tektronix window.

              RESET (tekreset)

              COPY (tekcopy)

       Windows:

              Show VT Window (vtshow)

              Switch to VT Mode (vtmode)

              Hide Tek Window (tekhide)


SECURITY

       X environments differ in their security consciousness.

       o   Most servers, run under xdm, are capable of using a "magic  cookie"
           authorization  scheme  that can provide a reasonable level of secu-
           rity for many people.  If your server is only  using  a  host-based
           mechanism  to  control access to the server (see xhost(1)), then if
           you enable access for a host and other users are also permitted  to
           run  clients on that same host, it is possible that someone can run
           an application which uses the basic services of the X  protocol  to
           snoop  on  your  activities,  potentially capturing a transcript of
           everything you type at the keyboard.

       o   Any process which has access to your X display can manipulate it in
           ways  that you might not anticipate, even redirecting your keyboard
           to itself and sending events to your application's  windows.   This
           is  true  even with the "magic cookie" authorization scheme.  While
           the allowSendEvents provides some protection against rogue applica-
           tions  tampering  with your programs, guarding against a snooper is
           harder.

       o   The X input extension for instance allows an application to  bypass
           all  of  the  other  (limited) authorization and security features,
           including the GrabKeyboard protocol.

       o   The possibility of an application spying on your keystrokes  is  of
           particular  concern  when  you  want to type in a password or other
           sensitive data.  The best solution to this problem is to use a bet-
           ter authorization mechanism than is provided by X.

       Subject to all of these caveats, a simple mechanism exists for protect-
       ing keyboard input in xterm.

       The xterm menu (see MENUS  above)  contains  a  Secure  Keyboard  entry
       which,  when  enabled,  attempts  to  ensure that all keyboard input is
       directed only to xterm (using the GrabKeyboard protocol request).  When
       an  application  prompts  you for a password (or other sensitive data),
       you can enable Secure Keyboard using the menu, type in  the  data,  and
       then disable Secure Keyboard using the menu again.

       o   This  ensures  that  you  know  which window is accepting your key-
           strokes.

       o   It cannot ensure that there are no processes which have  access  to
           your X display that might be observing the keystrokes as well.

       Only  one X client at a time can grab the keyboard, so when you attempt
       to enable Secure Keyboard it may fail.  In this  case,  the  bell  will
       sound.   If the Secure Keyboard succeeds, the foreground and background
       colors will be exchanged (as if you selected the Reverse Video entry in
       the  Modes  menu);  they  will  be exchanged again when you exit secure
       mode.  If the colors do not switch, then you should be very  suspicious
       that  you  are  being spoofed.  If the application you are running dis-
       plays a prompt before asking for the password, it is  safest  to  enter
       secure mode before the prompt gets displayed, and to make sure that the
       prompt gets displayed correctly (in the new colors),  to  minimize  the
       probability of spoofing.  You can also bring up the menu again and make
       sure that a check mark appears next to the entry.

       Secure Keyboard mode will be disabled automatically if your xterm  win-
       dow  becomes  iconified  (or  otherwise unmapped), or if you start up a
       reparenting window manager (that places a title bar or other decoration
       around  the  window) while in Secure Keyboard mode.  (This is a feature
       of the X protocol not easily overcome.)  When this happens,  the  fore-
       ground  and  background  colors will be switched back and the bell will
       sound in warning.


CHARACTER CLASSES

       Clicking the left pointer button twice  in  rapid  succession  (double-
       clicking) causes all characters of the same class (e.g., letters, white
       space, punctuation) to be selected as a "word".  Since different people
       have  different  preferences  for what should be selected (for example,
       should filenames be selected as a whole or only the separate subnames),
       the  default mapping can be overridden through the use of the charClass
       (class CharClass) resource.

       This resource is a series of comma-separated  range:value  pairs.   The
       range is either a single number or low-high in the range of 0 to 65535,
       corresponding to the code for the character or characters  to  be  set.
       The  value  is arbitrary, although the default table uses the character
       number of the first character occurring in the set.  When not in  UTF-8
       mode, only the first 256 bytes of this table will be used.

       The default table starts as follows -

           static int charClass[256] = {
           /* NUL  SOH  STX  ETX  EOT  ENQ  ACK  BEL */
               32,   1,   1,   1,   1,   1,   1,   1,
           /*  BS   HT   NL   VT   NP   CR   SO   SI */
                1,  32,   1,   1,   1,   1,   1,   1,
           /* DLE  DC1  DC2  DC3  DC4  NAK  SYN  ETB */
                1,   1,   1,   1,   1,   1,   1,   1,
           /* CAN   EM  SUB  ESC   FS   GS   RS   US */
                1,   1,   1,   1,   1,   1,   1,   1,
           /*  SP    !    "    #    $    %    &    ' */
               32,  33,  34,  35,  36,  37,  38,  39,
           /*   (    )    *    +    ,    -    .    / */
               40,  41,  42,  43,  44,  45,  46,  47,
           /*   0    1    2    3    4    5    6    7 */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*   8    9    :    ;    <    =    >    ? */
               48,  48,  58,  59,  60,  61,  62,  63,
           /*   @    A    B    C    D    E    F    G */
               64,  48,  48,  48,  48,  48,  48,  48,
           /*   H    I    J    K    L    M    N    O */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*   P    Q    R    S    T    U    V    W */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*   X    Y    Z    [    \    ]    ^    _ */
               48,  48,  48,  91,  92,  93,  94,  48,
           /*   `    a    b    c    d    e    f    g */
               96,  48,  48,  48,  48,  48,  48,  48,
           /*   h    i    j    k    l    m    n    o */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*   p    q    r    s    t    u    v    w */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*   x    y    z    {    |    }    ~  DEL */
               48,  48,  48, 123, 124, 125, 126,   1,
           /* x80  x81  x82  x83  IND  NEL  SSA  ESA */
                1,   1,   1,   1,   1,   1,   1,   1,
           /* HTS  HTJ  VTS  PLD  PLU   RI  SS2  SS3 */
                1,   1,   1,   1,   1,   1,   1,   1,
           /* DCS  PU1  PU2  STS  CCH   MW  SPA  EPA */
                1,   1,   1,   1,   1,   1,   1,   1,
           /* x98  x99  x9A  CSI   ST  OSC   PM  APC */
                1,   1,   1,   1,   1,   1,   1,   1,
           /*   -    i   c/    L   ox   Y-    |   So */
              160, 161, 162, 163, 164, 165, 166, 167,
           /*  ..   c0   ip   <<    _        R0    - */
              168, 169, 170, 171, 172, 173, 174, 175,
           /*   o   +-    2    3    '    u   q|    . */
              176, 177, 178, 179, 180, 181, 182, 183,
           /*   ,    1    2   >>  1/4  1/2  3/4    ? */
              184, 185, 186, 187, 188, 189, 190, 191,
           /*  A`   A'   A^   A~   A:   Ao   AE   C, */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*  E`   E'   E^   E:   I`   I'   I^   I: */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*  D-   N~   O`   O'   O^   O~   O:    X */
               48,  48,  48,  48,  48,  48,  48, 215,
           /*  O/   U`   U'   U^   U:   Y'    P    B */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*  a`   a'   a^   a~   a:   ao   ae   c, */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*  e`   e'   e^   e:    i`  i'   i^   i: */
               48,  48,  48,  48,  48,  48,  48,  48,
           /*   d   n~   o`   o'   o^   o~   o:   -: */
               48,  48,  48,  48,  48,  48,  48, 247,
           /*  o/   u`   u'   u^   u:   y'    P   y: */
               48,  48,  48,  48,  48,  48,  48,  48};

              For  example,  the string "33:48,37:48,45-47:48,38:48" indicates
              that the exclamation mark, percent sign,  dash,  period,  slash,
              and ampersand characters should be treated the same way as char-
              acters and numbers.  This is  useful  for  cutting  and  pasting
              electronic mailing addresses and filenames.


KEY BINDINGS

       It  is  possible  to  rebind  keys  (or sequences of keys) to arbitrary
       strings for input, by changing the translations resources for the vt100
       or  tek4014  widgets.   Changing  the  translations resource for events
       other than key and button events is not expected, and will cause unpre-
       dictable behavior.


Actions

       The  following actions are provided for use within the vt100 or tek4014
       translations resources:

       allow-color-ops(on/off/toggle)
               This action sets, unsets or toggles the allowColorOps  resource
               and is also invoked by the allow-color-ops entry in fontMenu.

       allow-font-ops(on/off/toggle)
               This  action  sets, unsets or toggles the allowFontOps resource
               and is also invoked by the allow-font-ops entry in fontMenu.

       allow-send-events(on/off/toggle)
               This  action  sets,  unsets  or  toggles  the   allowSendEvents
               resource  and  is also invoked by the allowsends entry in main-
               Menu.

       allow-tcap-ops(on/off/toggle)
               This action sets, unsets or toggles the  allowTcapOps  resource
               and is also invoked by the allow-tcap-ops entry in fontMenu.

       allow-title-ops(on/off/toggle)
               This  action sets, unsets or toggles the allowTitleOps resource
               and is also invoked by the allow-title-ops entry in fontMenu.

       allow-window-ops(on/off/toggle)
               This action sets, unsets or toggles the allowWindowOps resource
               and is also invoked by the allow-window-ops entry in fontMenu.

       alt-sends-escape()
               This action toggles the state of the altSendsEscape resource.

       bell([percent])
               This action rings the keyboard bell at the specified percentage
               above or below the base volume.

       clear-saved-lines()
               This action does hard-reset() (see below) and also  clears  the
               history  of  lines saved off the top of the screen.  It is also
               invoked from the clearsavedlines entry in vtMenu.   The  effect
               is identical to a hardware reset (RIS) control sequence.

       copy-selection(destname [, ...])
               This  action  puts  the currently selected text into all of the
               selections or cutbuffers specified by destname.  Unlike select-
               end,  it does not send a mouse position or otherwise modify the
               internal selection state.

       create-menu(m/v/f/t)
               This action creates one of the menus used by xterm, if  it  has
               not been previously created.  The parameter values are the menu
               names: mainMenu, vtMenu, fontMenu, tekMenu, respectively.

       dabbrev-expand()
               Expands the word before cursor by searching  in  the  preceding
               text  on  the  screen  and  in  the scrollback buffer for words
               starting with that  abbreviation.   Repeating  dabbrev-expand()
               several times in sequence searches for an alternative expansion
               by looking farther back.  Lack of more matches is signaled by a
               beep().  Attempts to expand an empty word (i.e., when cursor is
               preceded by a space) yield  successively  all  previous  words.
               Consecutive identical expansions are ignored.  The word here is
               defined as a sequence of non-whitespace characters.  This  fea-
               ture  partially emulates the behavior of "dynamic abbreviation"
               expansion in Emacs (bound there to M-/).  Here  is  a  resource
               setting for xterm which will do the same thing:

                   *VT100*translations:    #override \n\
                           Meta <KeyPress> /:dabbrev-expand()

       deiconify()
               Changes the window state back to normal, if it was iconified.

       delete-is-del()
               This action toggles the state of the deleteIsDEL resource.

       dired-button()
               Handles  a button event (other than press and release) by echo-
               ing the event's position (i.e., character line and  column)  in
               the following format:

                       ^X ESC G <line+" "> <col+" ">

       exec-formatted(format, sourcename [, ...])
               Execute  an  external  command, using the current selection for
               part of the command's parameters.  The first parameter,  format
               gives  the  basic  command.   Succeeding parameters specify the
               selection source as in insert-selection.

               The format parameter allows these substitutions:

               %%   inserts a "%".

               %P   the screen-position at the beginning  of  the  highlighted
                    region,  as  a  semicolon-separated pair of integers using
                    the values that the CUP control sequence would use.

               %p   the screen-position after the beginning of the highlighted
                    region, using the same convention as "%P".

               %S   the length of the string that "%s" would insert.

               %s   the content of the selection, unmodified.

               %T   the length of the string that "%t" would insert.

               %t   the  selection,  trimmed  of  leading/trailing whitespace.
                    Embedded spaces (and newlines) are copied as is.

               %R   the length of the string that "%r" would insert.

               %r   the selection, trimmed of trailing whitespace.

               %V   the video attributes at the beginning of  the  highlighted
                    region,  as  a  semicolon-separated list of integers using
                    the values that the SGR control sequence would use.

               %v   the video attributes after  the  end  of  the  highlighted
                    region, using the same convention as "%V".

               After constructing the command-string, xterm forks a subprocess
               and executes the  command,  which  completes  independently  of
               xterm.

               For  example, this translation would invoke a new xterm process
               to view a file whose name is selected while holding  the  shift
               key  down.  The new process is started when the mouse button is
               released:

                   *VT100*translations: #override Shift \
                       <Btn1Up>: exec-formatted("xterm -e view '%t'", SELECT)

       exec-selectable(format, onClicks)
               Execute an external command, using data copied from the  screen
               for  part  of  the  command's parameters.  The first parameter,
               format gives the basic command as in exec-formatted.  The  sec-
               ond  parameter  specifies the method for copying the data as in
               the onClicks resource.

       fullscreen(on/off/toggle)
               This action sets, unsets or toggles the fullscreen resource.

       iconify()
               Iconifies the window.

       hard-reset()
               This action resets the scrolling region, tabs, window size, and
               cursor keys and clears the screen.  It is also invoked from the
               hardreset entry in vtMenu.

       ignore()
               This action ignores the event but checks  for  special  pointer
               position escape sequences.

       insert()
               This action inserts the character or string associated with the
               key that was pressed.

       insert-eight-bit()
               This action inserts an eight-bit (Meta) version of the  charac-
               ter  or  string associated with the key that was pressed.  Only
               single-byte values are treated  specially.   The  exact  action
               depends  on  the  value of the altSendsEscape and the metaSend-
               sEscape and the eightBitInput resources.   The  metaSendsEscape
               resource is tested first.  See the eightBitInput resource for a
               full discussion.

               The term "eight-bit" is misleading: xterm checks if the key  is
               in  the range 128 to 255 (the eighth bit is set).  If the value
               is in that range, depending on the resource values,  xterm  may
               then do one of the following:

               o   add 128 to the value, setting its eighth bit,

               o   send an ESC byte before the key, or

               o   send the key unaltered.

       insert-formatted(format, sourcename [, ...])
               Insert  the current selection or data related to it, formatted.
               The first parameter, format gives the template for the data  as
               in exec-formatted.  Succeeding parameters specify the selection
               source as in insert-selection.

       insert-selectable(format, onClicks)
               Insert data copied  from  the  screen,  formatted.   The  first
               parameter,  format  gives the template for the data as in exec-
               formatted.  The second parameter specifies the method for copy-
               ing the data as in the onClicks resource.

       insert-selection(sourcename [, ...])
               This  action  inserts the string found in the selection or cut-
               buffer indicated by sourcename.  Sources  are  checked  in  the
               order  given  (case  is  significant) until one is found.  Com-
               monly-used selections include: PRIMARY,  SECONDARY,  and  CLIP-
               BOARD.   Cut  buffers  are  typically named CUT_BUFFER0 through
               CUT_BUFFER7.

       insert-seven-bit()
               This action is a synonym for insert().  The term "seven-bit" is
               misleading:  it only implies that xterm does not try to add 128
               to the key's value as in insert-eight-bit().

       interpret(control-sequence)
               Interpret the given control  sequence  locally,  i.e.,  without
               passing  it  to  the host.  This works by inserting the control
               sequence at the front of the input buffer.  Use "\"  to  escape
               octal  digits  in  the  string.  Xt does not allow you to put a
               null character (i.e., "\000") in the string.

       keymap(name)
               This action dynamically defines a new translation  table  whose
               resource  name is name with the suffix Keymap (case is signifi-
               cant).  The name None restores the original translation table.

       larger-vt-font()
               Set the font to the next larger one, based on the  font  dimen-
               sions.  See also set-vt-font().

       load-vt-fonts(name[,class])
               Load fontnames from the given subresource name and class.  That
               is, load the "*VT100.name.font", resource as "*VT100.font" etc.
               If no name is given, the original set of fontnames is restored.

               Unlike  set-vt-font(),  this  does  not  affect the escape- and
               select-fonts, since those are not based on resource values.  It
               does  affect  the  fonts  loosely organized under the "Default"
               menu entry, including font, boldFont,  wideFont  and  wideBold-
               Font.

       maximize()
               Resizes the window to fill the screen.

       meta-sends-escape()
               This action toggles the state of the metaSendsEscape resource.

       popup-menu(menuname)
               This  action  displays  the  specified popup menu.  Valid names
               (case is significant) include:  mainMenu, vtMenu, fontMenu, and
               tekMenu.

       print(printer-flags)
               This action prints the window.  It is also invoked by the print
               entry in mainMenu.

               The action accepts optional parameters, which temporarily over-
               ride  resource  settings.   The  parameter  values  are matched
               ignoring case:

               noFormFeed
                    no form feed will be sent at the  end  of  the  last  line
                    printed (i.e., printerFormFeed is ``false'').

               FormFeed
                    a  form  feed  will  be  sent  at the end of the last line
                    printed (i.e., printerFormFeed is ``true'').

               noNewLine
                    no newline will be sent  at  the  end  of  the  last  line
                    printed,  and  wrapped  lines  will  be combined into long
                    lines (i.e., printerNewLine is ``false'').

               NewLine
                    a newline will be  sent  at  the  end  of  the  last  line
                    printed,  and  each line will be limited (by adding a new-
                    line)  to  the  screen  width  (i.e.,  printerNewLine   is
                    ``true'').

               noAttrs
                    the  page  is  printed  without attributes (i.e., printAt-
                    tributes is ``0'').

               monoAttrs
                    the page is printed  with  monochrome  (vt220)  attributes
                    (i.e., printAttributes is ``1'').

               colorAttrs
                    the  page  is  printed  with  ANSI color attributes (i.e.,
                    printAttributes is ``2'').

       print-everything(printer-flags)
               This action sends the entire text history, in addition  to  the
               text currently visible, to the program given in the printerCom-
               mand resource.  It allows the same optional parameters  as  the
               print  action.  With a suitable printer command, the action can
               be used to load the text history in an editor.

       print-immediate()
               Sends the text of the current window directly  to  a  file,  as
               specified  by  the  printFileImmediate,  printModeImmediate and
               printOptsImmediate resources.

       print-on-error()
               Toggles a flag telling xterm that if it exits with an X  error,
               to  send  the text of the current window directly to a file, as
               specified by the printFileXError, printModeXError and printOpt-
               sXError resources.

       print-redir()
               This  action  toggles  the  printerControlMode between 0 and 2.
               The corresponding popup menu entry is useful for switching  the
               printer off if you happen to change your mind after deciding to
               print random binary files on the terminal.

       quit()  This action sends a SIGHUP to the subprogram and exits.  It  is
               also invoked by the quit entry in mainMenu.

       readline-button()
               Supports the optional readline feature by echoing repeated cur-
               sor forward or backward control  sequences  on  button  release
               event,  to  request that the host application update its notion
               of the cursor's position to match the button event.

       redraw()
               This action redraws the window.  It  is  also  invoked  by  the
               redraw entry in mainMenu.

       restore()
               Restores the window to the size before it was last maximized.

       scroll-back(count [,units [,mouse] ])
               This  action scrolls the text window backward so that text that
               had previously scrolled off the top of the screen is now  visi-
               ble.

               The  count argument indicates the number of units (which may be
               page, halfpage, pixel, or line) by which to scroll.

               An adjustment can be specified for these values by appending  a
               "+" or "-" sign followed by a number, e.g., page-2 to specify 2
               lines less than a page.

               If the third parameter mouse is given, the  action  is  ignored
               when mouse reporting is enabled.

       scroll-forw(count [,units [,mouse] ])
               This action is similar to scroll-back except that it scrolls in
               the other direction.

       secure()
               This action toggles the Secure Keyboard mode described  in  the
               section named SECURITY, and is invoked from the securekbd entry
               in mainMenu.

       scroll-lock(on/off/toggle)
               This action sets, unsets or toggles internal state which  tells
               xterm whether Scroll Lock is active, subject to the allowScrol-
               lLock resource.

       select-cursor-end(destname [, ...])
               This action is similar to select-end except that it  should  be
               used with select-cursor-start.

       select-cursor-extend()
               This  action  is similar to select-extend except that it should
               be used with select-cursor-start.

       select-cursor-start()
               This action is similar to select-start except  that  it  begins
               the selection at the current text cursor position.

       select-end(destname [, ...])
               This  action  puts  the currently selected text into all of the
               selections or cutbuffers specified by destname.  It also  sends
               a  mouse  position  and updates the internal selection state to
               reflect the end of the selection process.

       select-extend()
               This action tracks the pointer and extends the  selection.   It
               should only be bound to Motion events.

       select-set()
               This  action stores text that corresponds to the current selec-
               tion, without affecting the selection mode.

       select-start()
               This action begins text selection at the current pointer  loca-
               tion.  See the section on POINTER USAGE for information on mak-
               ing selections.

       send-signal(signame)
               This action sends the signal named by signame to the xterm sub-
               process  (the  shell  or  program specified with the -e command
               line option).  It is also invoked  by  the  suspend,  continue,
               interrupt,  hangup,  terminate,  and  kill entries in mainMenu.
               Allowable signal names are (case is not significant): tstp  (if
               supported  by  the  operating  system), suspend (same as tstp),
               cont (if supported by the operating system),  int,  hup,  term,
               quit, alrm, alarm (same as alrm) and kill.

       set-8-bit-control(on/off/toggle)
               This   action  sets,  unsets  or  toggles  the  eightBitControl
               resource.  It is also invoked from the 8-bit-control  entry  in
               vtMenu.

       set-allow132(on/off/toggle)
               This  action  sets, unsets or toggles the c132 resource.  It is
               also invoked from the allow132 entry in vtMenu.

       set-altscreen(on/off/toggle)
               This action sets, unsets or toggles between the  alternate  and
               current screens.

       set-appcursor(on/off/toggle)
               This  action  sets,  unsets or toggles the handling Application
               Cursor Key mode and is also invoked by the appcursor  entry  in
               vtMenu.

       set-appkeypad(on/off/toggle)
               This action sets, unsets or toggles the handling of Application
               Keypad mode and is also  invoked  by  the  appkeypad  entry  in
               vtMenu.

       set-autolinefeed(on/off/toggle)
               This  action  sets,  unsets  or  toggles automatic insertion of
               linefeeds.  It is also invoked by  the  autolinefeed  entry  in
               vtMenu.

       set-autowrap(on/off/toggle)
               This  action sets, unsets or toggles automatic wrapping of long
               lines.  It is also invoked by the autowrap entry in vtMenu.

       set-backarrow(on/off/toggle)
               This action sets, unsets or toggles the backarrowKey  resource.
               It is also invoked from the backarrow key entry in vtMenu.

       set-bellIsUrgent(on/off/toggle)
               This  action sets, unsets or toggles the bellIsUrgent resource.
               It is also invoked by the bellIsUrgent entry in vtMenu.

       set-cursorblink(on/off/toggle)
               This action sets, unsets or toggles the  cursorBlink  resource.
               It is also invoked from the cursorblink entry in vtMenu.

       set-cursesemul(on/off/toggle)
               This action sets, unsets or toggles the curses resource.  It is
               also invoked from the cursesemul entry in vtMenu.

       set-font-doublesize(on/off/toggle)
               This  action  sets,  unsets  or  toggles   the   fontDoublesize
               resource.   It  is also invoked by the font-doublesize entry in
               fontMenu.

       set-hp-function-keys(on/off/toggle)
               This  action  sets,  unsets  or  toggles   the   hpFunctionKeys
               resource.   It  is  also invoked by the hpFunctionKeys entry in
               mainMenu.

       set-jumpscroll(on/off/toggle)
               This action sets, unsets or toggles  the  jumpscroll  resource.
               It is also invoked by the jumpscroll entry in vtMenu.

       set-font-linedrawing(on/off/toggle)
               This action sets, unsets or toggles the xterm's state regarding
               whether  the  current  font  has  line-drawing  characters  and
               whether  it  should  draw them directly.  It is also invoked by
               the font-linedrawing entry in fontMenu.

       set-font-packed(on/off/toggle)
               This action  sets,  unsets  or  toggles  the  forcePackedFont's
               resource  which  controls  use of the font's minimum or maximum
               glyph width.  It is also invoked by the  font-packed  entry  in
               fontMenu.

       set-keep-clipboard(on/off/toggle)
               This action sets, unsets or toggles the keepClipboard resource.

       set-keep-selection(on/off/toggle)
               This action sets, unsets or toggles the keepSelection resource.
               It is also invoked by the keepSelection entry in vtMenu.

       set-logging(on/off/toggle)
               This action sets, unsets or toggles the state  of  the  logging
               option.

       set-old-function-keys(on/off/toggle)
               This  action  sets, unsets or toggles the state of legacy func-
               tion keys.  It is also invoked by the oldFunctionKeys entry  in
               mainMenu.

       set-marginbell(on/off/toggle)
               This action sets, unsets or toggles the marginBell resource.

       set-num-lock(on/off/toggle)
               This action toggles the state of the numLock resource.

       set-pop-on-bell(on/off/toggle)
               This action sets, unsets or toggles the popOnBell resource.  It
               is also invoked by the poponbell entry in vtMenu.

       set-private-colors(on/off/toggle)
               This action sets, unsets or toggles  the  privateColorRegisters
               resource.

       set-render-font(on/off/toggle)
               This  action  sets,  unsets or toggles the renderFont resource.
               It is also invoked by the render-font entry in fontMenu.

       set-reverse-video(on/off/toggle)
               This action sets, unsets or toggles the reverseVideo  resource.
               It is also invoked by the reversevideo entry in vtMenu.

       set-reversewrap(on/off/toggle)
               This  action  sets, unsets or toggles the reverseWrap resource.
               It is also invoked by the reversewrap entry in vtMenu.

       set-scroll-on-key(on/off/toggle)
               This action sets, unsets or toggles the scrollKey resource.  It
               is also invoked from the scrollkey entry in vtMenu.

       set-scroll-on-tty-output(on/off/toggle)
               This   action  sets,  unsets  or  toggles  the  scrollTtyOutput
               resource.  It is also invoked from the scrollttyoutput entry in
               vtMenu.

       set-scrollbar(on/off/toggle)
               This action sets, unsets or toggles the scrollbar resource.  It
               is also invoked by the scrollbar entry in vtMenu.

       set-sco-function-keys(on/off/toggle)
               This  action  sets,  unsets  or  toggles  the   scoFunctionKeys
               resource.   It  is also invoked by the scoFunctionKeys entry in
               mainMenu.

       set-select(on/off/toggle)
               This action  sets,  unsets  or  toggles  the  selectToClipboard
               resource.  It is also invoked by the selectToClipboard entry in
               vtMenu.

       set-sixel-scrolling(on/off/toggle)
               This action toggles between inline (sixel scrolling) and  abso-
               lute  positioning.   It  can also be controlled via DEC private
               mode 80 (DECSDM)  or  from  the  sixelScrolling  entry  in  the
               btMenu.

       set-sun-function-keys(on/off/toggle)
               This   action  sets,  unsets  or  toggles  the  sunFunctionKeys
               resource.  It is also invoked by the sunFunctionKeys  entry  in
               mainMenu.

       set-sun-keyboard(on/off/toggle)
               This  action  sets, unsets or toggles the sunKeyboard resource.
               It is also invoked by the sunKeyboard entry in mainMenu.

       set-tek-text(large/2/3/small)
               This action sets the font used in the Tektronix window  to  the
               value  of the selected resource according to the argument.  The
               argument can be either a keyword  or  single-letter  alias,  as
               shown in parentheses:

               large (l)
                    Use resource fontLarge, same as menu entry tektextlarge.

               two (2)
                    Use resource font2, same as menu entry tektext2.

               three (3)
                    Use resource font3, same as menu entry tektext3.

               small (s)
                    Use resource fontSmall, same as menu entry tektextsmall.

       set-terminal-type(type)
               This  action  directs  output  to either the vt or tek windows,
               according to the type string.  It is also invoked by  the  tek-
               mode entry in vtMenu and the vtmode entry in tekMenu.

       set-titeInhibit(on/off/toggle)
               This  action  sets, unsets or toggles the titeInhibit resource,
               which controls switching  between  the  alternate  and  current
               screens.

       set-toolbar(on/off/toggle)
               This action sets, unsets or toggles the toolbar feature.  It is
               also invoked by the toolbar entry in mainMenu.

       set-utf8-mode(on/off/toggle)
               This action sets, unsets or toggles the utf8 resource.   It  is
               also invoked by the utf8-mode entry in fontMenu.

       set-utf8-title(on/off/toggle)
               This action sets, unsets or toggles the utf8Title resource.  It
               is also invoked by the utf8-title entry in fontMenu.

       set-visibility(vt/tek,on/off/toggle)
               This action sets, unsets or toggles whether or not  the  vt  or
               tek  windows  are visible.  It is also invoked from the tekshow
               and vthide entries in vtMenu and the vtshow and tekhide entries
               in tekMenu.

       set-visual-bell(on/off/toggle)
               This  action  sets,  unsets or toggles the visualBell resource.
               It is also invoked by the visualbell entry in vtMenu.

       set-vt-font(d/1/2/3/4/5/6/e/s [,normalfont [, boldfont]])
               This action sets the font or fonts currently being used in  the
               VT102  window.   The  first argument is a single character that
               specifies the font to be used:

               d or D indicate the default font (the font initially used  when
                      xterm was started),

               1  through  6 indicate the fonts specified by the font1 through
                      font6 resources,

               e or E indicate the normal and bold fonts that  have  been  set
                      through  escape  codes  (or  specified as the second and
                      third action arguments, respectively), and

               s or S indicate the font selection (as made by programs such as
                      xfontsel(1)) indicated by the second action argument.

               If  xterm  is  configured  to support wide characters, an addi-
               tional two optional parameters are recognized for the  e  argu-
               ment: wide font and wide bold font.

       smaller-vt-font()
               Set  the font to the next smaller one, based on the font dimen-
               sions.  See also set-vt-font().

       soft-reset()
               This action resets the scrolling region.  It  is  also  invoked
               from the softreset entry in vtMenu.  The effect is identical to
               a soft reset (DECSTR) control sequence.

       spawn-new-terminal(params)
               Spawn a new xterm process.  This is available on systems  which
               have a modern version of the process filesystem, e.g., "/proc",
               which xterm can read.

               Use the "cwd" process entry, e.g.,  /proc/12345/cwd  to  obtain
               the  working  directory  of the process which is running in the
               current xterm.

               On  systems  which  have  the  "exe"   process   entry,   e.g.,
               /proc/12345/exe,  use  this  to  obtain  the actual executable.
               Otherwise, use the $PATH variable to find xterm.

               If parameters are given in the action, pass  them  to  the  new
               xterm process.

       start-extend()
               This  action  is similar to select-start except that the selec-
               tion is extended to the current pointer location.

       start-cursor-extend()
               This action is similar to select-extend except that the  selec-
               tion is extended to the current text cursor position.

       string(string)
               This action inserts the specified text string as if it had been
               typed.  Quotation is necessary if the  string  contains  white-
               space  or  non-alphanumeric characters.  If the string argument
               begins with the characters "0x", it is  interpreted  as  a  hex
               character constant.

       tek-copy()
               This  action  copies the escape codes used to generate the cur-
               rent window contents to a file in the current directory  begin-
               ning  with  the name COPY.  It is also invoked from the tekcopy
               entry in tekMenu.

       tek-page()
               This action clears the Tektronix window.  It is also invoked by
               the tekpage entry in tekMenu.

       tek-reset()
               This action resets the Tektronix window.  It is also invoked by
               the tekreset entry in tekMenu.

       vi-button()
               Handles a button event (other than press and release) by  echo-
               ing a control sequence computed from the event's line number in
               the screen relative to the current line:

                       ESC ^P
               or
                       ESC ^N

               according to whether the event is before, or after the  current
               line,  respectively.   The ^N (or ^P) is repeated once for each
               line that the event differs from the current line.  The control
               sequence  is  omitted  altogether if the button event is on the
               current line.

       visual-bell()
               This action flashes the window quickly.

       The Tektronix window also has the following action:

       gin-press(l/L/m/M/r/R)
               This action sends the indicated graphics input code.


Default Key Bindings

       The default bindings in the VT102 window use the SELECT token, which is
       set by the selectToClipboard resource.  These are for the vt100 widget:

                     Shift <KeyPress> Prior:scroll-back(1,halfpage) \n\
                      Shift <KeyPress> Next:scroll-forw(1,halfpage) \n\
                    Shift <KeyPress> Select:select-cursor-start() \
                                            select-cursor-end(SELECT, CUT_BUFFER0) \n\
                    Shift <KeyPress> Insert:insert-selection(SELECT, CUT_BUFFER0) \n\
                            Alt <Key>Return:fullscreen() \n\
                   <KeyRelease> Scroll_Lock:scroll-lock() \n\
               Shift~Ctrl <KeyPress> KP_Add:larger-vt-font() \n\
               Shift Ctrl <KeyPress> KP_Add:smaller-vt-font() \n\
               Shift <KeyPress> KP_Subtract:smaller-vt-font() \n\
                           ~Meta <KeyPress>:insert-seven-bit() \n\
                            Meta <KeyPress>:insert-eight-bit() \n\
                           !Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
                      !Lock Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
            !Lock Ctrl @Num_Lock <Btn1Down>:popup-menu(mainMenu) \n\
                ! @Num_Lock Ctrl <Btn1Down>:popup-menu(mainMenu) \n\
                           ~Meta <Btn1Down>:select-start() \n\
                         ~Meta <Btn1Motion>:select-extend() \n\
                           !Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
                      !Lock Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
            !Lock Ctrl @Num_Lock <Btn2Down>:popup-menu(vtMenu) \n\
                ! @Num_Lock Ctrl <Btn2Down>:popup-menu(vtMenu) \n\
                     ~Ctrl ~Meta <Btn2Down>:ignore() \n\
                            Meta <Btn2Down>:clear-saved-lines() \n\
                       ~Ctrl ~Meta <Btn2Up>:insert-selection(SELECT, CUT_BUFFER0) \n\
                           !Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
                      !Lock Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
            !Lock Ctrl @Num_Lock <Btn3Down>:popup-menu(fontMenu) \n\
                ! @Num_Lock Ctrl <Btn3Down>:popup-menu(fontMenu) \n\
                     ~Ctrl ~Meta <Btn3Down>:start-extend() \n\
                         ~Meta <Btn3Motion>:select-extend() \n\
                            Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
                       Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
             Lock @Num_Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
                  @Num_Lock Ctrl <Btn4Down>:scroll-back(1,halfpage,m) \n\
                                 <Btn4Down>:scroll-back(5,line,m)     \n\
                            Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
                       Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
             Lock @Num_Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
                  @Num_Lock Ctrl <Btn5Down>:scroll-forw(1,halfpage,m) \n\
                                 <Btn5Down>:scroll-forw(5,line,m)     \n\
                                    <BtnUp>:select-end(SELECT, CUT_BUFFER0) \n\
                                  <BtnDown>:ignore()

       The  default  bindings  in  the Tektronix window are analogous but less
       extensive.  These are for the tek4014 widget:

                            ~Meta<KeyPress>: insert-seven-bit() \n\
                             Meta<KeyPress>: insert-eight-bit() \n\
                           !Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
                      !Lock Ctrl <Btn1Down>: popup-menu(mainMenu) \n\
            !Lock Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
                 !Ctrl @Num_Lock <Btn1Down>: popup-menu(mainMenu) \n\
                           !Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
                      !Lock Ctrl <Btn2Down>: popup-menu(tekMenu) \n\
            !Lock Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
                 !Ctrl @Num_Lock <Btn2Down>: popup-menu(tekMenu) \n\
                      Shift ~Meta<Btn1Down>: gin-press(L) \n\
                            ~Meta<Btn1Down>: gin-press(l) \n\
                      Shift ~Meta<Btn2Down>: gin-press(M) \n\
                            ~Meta<Btn2Down>: gin-press(m) \n\
                      Shift ~Meta<Btn3Down>: gin-press(R) \n\
                            ~Meta<Btn3Down>: gin-press(r)

       Here is an example which uses shifted select/paste to copy to the clip-
       board,  and  unshifted select/paste for the primary selection.  In each
       case, a (different) cut buffer is  also  a  target  or  source  of  the
       select/paste  operation.  It is important to remember however, that cut
       buffers store data in ISO-8859-1 encoding, while selections  can  store
       data  in  a  variety  of  formats  and encodings.  While xterm owns the
       selection, it highlights it.  When it loses the selection,  it  removes
       the  corresponding  highlight.  But you can still paste from the corre-
       sponding cut buffer.

           *VT100*translations:    #override \n\
               ~Shift~Ctrl<Btn2Up>: insert-selection(PRIMARY, CUT_BUFFER0) \n\
               Shift~Ctrl<Btn2Up>:  insert-selection(CLIPBOARD, CUT_BUFFER1) \n\
               ~Shift<BtnUp>:       select-end(PRIMARY, CUT_BUFFER0) \n\
               Shift<BtnUp>:        select-end(CLIPBOARD, CUT_BUFFER1)

       In the example, the class name VT100 is used  rather  than  the  widget
       name.   These  are  different;  the class name provides a more-specific
       match than the widget name.  A leading "*" is used because  the  widget
       hierarchy above the vt100 widget depends on whether the toolbar support
       is compiled into xterm.

       Below is shown a sample of how the keymap() action may be used  to  add
       special keys for entering commonly-typed words:

           *VT100.Translations: #override <Key>F13: keymap(dbx)
           *VT100.dbxKeymap.translations: \
                   <Key>F14:       keymap(None) \n\
                   <Key>F17:       string("next") string(0x0d) \n\
                   <Key>F18:       string("step") string(0x0d) \n\
                   <Key>F19:       string("continue") string(0x0d) \n\
                   <Key>F20:       string("print ") insert-selection(PRIMARY, CUT_BUFFER0)


Default Scrollbar Bindings

       Key  bindings are normally associated with the vt100 or tek4014 widgets
       which act as terminal emulators.  Xterm's scrollbar (and toolbar if  it
       is  configured)  are  separate widgets.  Because all of these use the X
       Toolkit,  they  have  corresponding  translations   resources.    Those
       resources are distinct, and match different patterns, e.g., the differ-
       ences in widget-name and number of levels of  widgets  which  they  may
       contain.

       The  scrollbar widget is a child of the vt100 widget.  It is positioned
       on top of the vt100 widget.  Toggling the scrollbar on and  off  causes
       the vt100 widget to resize.

       The  default  bindings  for  the scrollbar widget use only mouse-button
       events:

                                 <Btn5Down>: StartScroll(Forward) \n\
                                 <Btn1Down>: StartScroll(Forward) \n\
                                 <Btn2Down>: StartScroll(Continuous) MoveThumb() NotifyThumb() \n\
                                 <Btn3Down>: StartScroll(Backward) \n\
                                 <Btn4Down>: StartScroll(Backward) \n\
                                 <Btn2Motion>: MoveThumb() NotifyThumb() \n\
                                 <BtnUp>:    NotifyScroll(Proportional) EndScroll()

       Events which the scrollbar widget does not recognize at all are lost.

       However, at startup, xterm augments these translations with the default
       translations  used  for  the  vt100  widget, together with the resource
       "actions" which those translations  use.   Because  the  scrollbar  (or
       menubar)  widgets  do not recognize these actions (but because it has a
       corresponding translation), they are passed on to the vt100 widget.

       This augmenting of the scrollbar's translations has a few limitations:

       o   Xterm knows what the default translations  are,  but  there  is  no
           suitable  library  interface  for determining what customizations a
           user may have added to the vt100 widget.  All that xterm can do  is
           augment the scrollbar widget to give it the same starting point for
           further customization by the user.

       o   Events in the gap between the widgets may be lost.

       o   Compose sequences begun in one widget cannot be  completed  in  the
           other,  because the input methods for each widget do not share con-
           text information.

       Most customizations of the scrollbar translations do  not  concern  key
       bindings.   Rather, users are generally more interested in changing the
       bindings of the mouse buttons.  For example, some people  prefer  using
       the  left pointer button for dragging the scrollbar thumb.  That can be
       set up by altering the translations resource, e.g.,

           *VT100.scrollbar.translations:  #override \n\
                   <Btn5Down>:     StartScroll(Forward) \n\
                   <Btn1Down>:     StartScroll(Continuous) MoveThumb() NotifyThumb() \n\
                   <Btn4Down>:     StartScroll(Backward) \n\
                   <Btn1Motion>:   MoveThumb() NotifyThumb() \n\
                   <BtnUp>:        NotifyScroll(Proportional) EndScroll()


CONTROL SEQUENCES AND KEYBOARD

       Applications can send sequences of characters to the terminal to change
       its behavior.  Often they are referred to as "ANSI escape sequences" or
       just plain "escape sequences" but both terms are misleading:

       o   ANSI x3.64 (obsolete) which was replaced by ISO 6429 (ECMA-48) gave
           rules for the format of these sequences of characters.

       o   While the original VT100 was claimed to be ANSI-compatible (against
           x3.64), there is no freely available version of the  ANSI  standard
           to  show where the VT100 differs.  Most of the documents which men-
           tion the ANSI standard have additions not  found  in  the  original
           (such  as  those based on ansi.sys).  So this discussion focuses on
           the ISO standards.

       o   The standard describes only sequences sent from  the  host  to  the
           terminal.   There is no standard for sequences sent by special keys
           from the terminal to the host.  By  convention  (and  referring  to
           existing terminals), the format of those sequences usually conforms
           to the host-to-terminal standard.

       o   Some of xterm's sequences do not  fit  into  the  standard  scheme.
           Technically  those  are  "unspecified".   As an example, DEC Screen
           Alignment Test (DECALN) is this three-character sequence:

               ESC # 8

       o   Some sequences fit into the standard format, but are not listed  in
           the  standard.   These  include  the  sequences used for setting up
           scrolling margins and doing forward/reverse scrolling.

       o   Some of the sequences (in particular,  the  single-character  func-
           tions  such as tab and backspace) do not include the escape charac-
           ter.

       With all of that in mind, the standard refers  to  these  sequences  of
       characters as "control sequences".

       The  Xterm Control Sequences document lists the control sequences which
       an application can send xterm to make it  perform  various  operations.
       Most  of these operations are standardized, from either the DEC or Tek-
       tronix terminals, or from more widely used standards such as ISO-6429.

       A few examples of usage are given in this section.


Window Titles

       Some scripts use echo with options -e and  -n  to  tell  the  shell  to
       interpret  the  string  "\e"  as the escape character and to suppress a
       trailing newline on output.  Those are not portable,  not  recommended.
       Instead, use printf (POSIX).

       For  example,  to set the window title to "Hello world!", you could use
       one of these commands in a script:

           printf '\033]2;Hello world!\033\'
           printf '\033]2;Hello world!\007'
           printf '\033]2;%s\033\' "Hello world!"
           printf '\033]2;%s\007' "Hello world!"

       The printf command interprets the octal value "\033"  for  escape,  and
       (since  it  was  not given in the format) omits a trailing newline from
       the output.

       Some programs (such as screen(1)) set both window- and  icon-titles  at
       the same time, using a slightly different control sequence.


Special Keys

       Xterm,  like  any VT100-compatible terminal emulator, has two modes for
       the special keys (cursor-keys, numeric keypad,  and  certain  function-
       keys):

       o   normal  mode,  which  makes  the  special  keys  transmit  "useful"
           sequences such as the control sequence for cursor-up when  pressing
           the up-arrow, and

       o   application mode, which uses a different control sequence that can-
           not be mistaken for the "useful" sequences.

       The main difference between the two modes is that normal mode sequences
       start with CSI (escape [) and application mode sequences start with SS3
       (escape O).

       The terminal is initialized into one of these two  modes  (usually  the
       normal  mode), based on the terminal description (termcap or terminfo).
       The terminal description also has capabilities  (strings)  defined  for
       the keypad mode used in curses applications.

       There  is  a problem in using the terminal description for applications
       that are not intended to be full-screen curses applications: the  defi-
       nitions  of  special  keys  are only correct for this keypad mode.  For
       example, some shells (unlike ksh(1), which appears  to  be  hard-coded,
       not  even  using  termcap) allow their users to customize key-bindings,
       assigning shell actions to special keys.

       o   bash(1) allows constant strings to be assigned to functions.   This
           is  only  successful  if the terminal is initialized to application
           mode by default, because bash lacks flexibility in this  area.   It
           uses  a  (less  expressive than bash's) readline scripting language
           for setting up key bindings, which relies upon the user  to  stati-
           cally enumerate the possible bindings for given values of $TERM.

       o   zsh(1)  provides  an  analogous  feature,  but  it  accepts runtime
           expressions, as well as providing a $terminfo  array  for  scripts.
           In particular, one can use the terminal database, transforming when
           defining a key-binding.  By transforming the output so that CSI and
           SS3 are equated, zsh can use the terminal database to obtain useful
           definitions for its command-line use regardless of whether the ter-
           minal  uses normal or application mode initially.  Here is an exam-
           ple:

               [[ "$terminfo[kcuu1]" == "^[O"* ]] && \
               bindkey -M viins "${terminfo[kcuu1]/O/[}" \
               vi-up-line-or-history


Changing Colors

       A few shell programs provide the ability for users  to  add  color  and
       other  video attributes to the shell prompt strings.  Users can do this
       by setting $PS1 (the primary prompt string).  Again, bash and zsh  have
       provided  features  not found in ksh.  There is a problem, however: the
       prompt's width on the screen will not necessarily be the  same  as  the
       number  of characters.  Because there is no guidance in the POSIX stan-
       dard, each shell addresses the problem in a different way:

       o   bash treats characters within "\[" and "\]" as  nonprinting  (using
           no width on the screen).

       o   zsh treats characters within "%{" and "%}" as nonprinting.

       In  addition  to the difference in syntax, the shells provide different
       methods for obtaining useful escape sequences:

       o   As noted in Special Keys, zsh initializes the $terminfo array  with
           the terminal capabilities.

           It also provides a function echoti which works like tput(1) to con-
           vert a terminal capability with its parameters into a  string  that
           can be written to the terminal.

       o   Shells  lacking  a comparable feature (such as bash) can always use
           the program tput to do this transformation.

       Hard-coded escape sequences are supported by each shell,  but  are  not
       recommended  because those rely upon particular configurations and can-
       not be easily moved between different user environments.


ENVIRONMENT

       Xterm sets several environment variables:

       DISPLAY
            is the display name, pointing to the X server (see  DISPLAY  NAMES
            in X(7)).

       TERM is  set  according  to the terminfo (or termcap) entry which it is
            using as a reference.

            On some systems, you may  encounter  situations  where  the  shell
            which  you  use and xterm are built using libraries with different
            terminal databases.  In that situation, xterm may choose a  termi-
            nal description not known to the shell.

       WINDOWID
            is set to the X window id number of the xterm window.

       XTERM_FILTER
            is  set  if a locale-filter is used.  The value is the pathname of
            the filter.

       XTERM_LOCALE
            shows the locale which was used by xterm on startup.   Some  shell
            initialization scripts may set a different locale.

       XTERM_SHELL
            is  set  to the pathname of the program which is invoked.  Usually
            that is a shell program, e.g., /bin/sh.  Since it is not necessar-
            ily a shell program however, it is distinct from "SHELL".

       XTERM_VERSION
            is  set  to  the string displayed by the -version option.  That is
            normally an identifier for the X Window libraries  used  to  build
            xterm, followed by xterm's patch number in parenthesis.  The patch
            number is  also  part  of  the  response  to  a  Secondary  Device
            Attributes (DA) control sequence (see Xterm Control Sequences).

       Depending  on your system configuration, xterm may also set the follow-
       ing:

       COLUMNS
            the width of the xterm in characters (cf: "stty columns").

       HOME when xterm is configured to update utmp.

       LINES
            the height of the xterm in characters (cf: "stty rows").

       LOGNAME
            when xterm is configured to update utmp.

       SHELL
            when xterm is configured to update utmp.  It is also  set  if  you
            provide a valid shell name as the optional parameter.

            Xterm  sets  this  to  an  absolute pathname.  If you have set the
            variable to a relative pathname, xterm may set it to  a  different
            shell pathname.

            If you have set this to an pathname which does not correspond to a
            valid shell, xterm may unset it, to avoid confusion.

       TERMCAP
            the contents of the termcap entry  corresponding  to  $TERM,  with
            lines  and  columns  values substituted for the actual size window
            you have created.

       TERMINFO
            may be defined to a nonstandard location in the configure script.


FILES

       The actual pathnames given may differ on your system.

       /etc/shells
            contains a list of valid shell programs, used by xterm  to  decide
            if  the "SHELL" environment variable should be set for the process
            started by xterm.

       /var/run/utmp
            the system logfile, which records user logins.

       /var/log/wtmp
            the system logfile, which records user logins and logouts.

       /etc/X11/app-defaults/XTerm
            the xterm default application resources.

       /etc/X11/app-defaults/XTerm-color
            the xterm color application resources.  If your  display  supports
            color, use this
                      *customization: -color
            in  your  .Xdefaults  file to automatically use this resource file
            rather than /etc/X11/app-defaults/XTerm.  If you do not  do  this,
            xterm uses its compiled-in default resource settings for colors.

       /usr/share/pixmaps
            the directory in which xterm's pixmap icon files are installed.


ERROR MESSAGES

       Most of the fatal error messages from xterm use the following format:
              xterm: Error XXX, errno YYY: ZZZ
       The  XXX  codes  (which  are used by xterm as its exit-code) are listed
       below, with a brief explanation.

       1    is used for miscellaneous errors, usually accompanied  by  a  spe-
            cific message,

       11   ERROR_FIONBIO
            main: ioctl() failed on FIONBIO

       12   ERROR_F_GETFL
            main: ioctl() failed on F_GETFL

       13   ERROR_F_SETFL
            main: ioctl() failed on F_SETFL

       14   ERROR_OPDEVTTY
            spawn: open() failed on /dev/tty

       15   ERROR_TIOCGETP
            spawn: ioctl() failed on TIOCGETP

       17   ERROR_PTSNAME
            spawn: ptsname() failed

       18   ERROR_OPPTSNAME
            spawn: open() failed on ptsname

       19   ERROR_PTEM
            spawn: ioctl() failed on I_PUSH/"ptem"

       20   ERROR_CONSEM
            spawn: ioctl() failed on I_PUSH/"consem"

       21   ERROR_LDTERM
            spawn: ioctl() failed on I_PUSH/"ldterm"

       22   ERROR_TTCOMPAT
            spawn: ioctl() failed on I_PUSH/"ttcompat"

       23   ERROR_TIOCSETP
            spawn: ioctl() failed on TIOCSETP

       24   ERROR_TIOCSETC
            spawn: ioctl() failed on TIOCSETC

       25   ERROR_TIOCSETD
            spawn: ioctl() failed on TIOCSETD

       26   ERROR_TIOCSLTC
            spawn: ioctl() failed on TIOCSLTC

       27   ERROR_TIOCLSET
            spawn: ioctl() failed on TIOCLSET

       28   ERROR_INIGROUPS
            spawn: initgroups() failed

       29   ERROR_FORK
            spawn: fork() failed

       30   ERROR_EXEC
            spawn: exec() failed

       32   ERROR_PTYS
            get_pty: not enough ptys

       34   ERROR_PTY_EXEC
            waiting for initial map

       35   ERROR_SETUID
            spawn: setuid() failed

       36   ERROR_INIT
            spawn: can't initialize window

       46   ERROR_TIOCKSET
            spawn: ioctl() failed on TIOCKSET

       47   ERROR_TIOCKSETC
            spawn: ioctl() failed on TIOCKSETC

       49   ERROR_LUMALLOC
            luit: command-line malloc failed

       50   ERROR_SELECT
            in_put: select() failed

       54   ERROR_VINIT
            VTInit: can't initialize window

       57   ERROR_KMMALLOC1
            HandleKeymapChange: malloc failed

       60   ERROR_TSELECT
            Tinput: select() failed

       64   ERROR_TINIT
            TekInit: can't initialize window

       71   ERROR_BMALLOC2
            SaltTextAway: malloc() failed

       80   ERROR_LOGEXEC
            StartLog: exec() failed

       83   ERROR_XERROR
            xerror: XError event

       84   ERROR_XIOERROR
            xioerror: X I/O error

       85   ERROR_ICEERROR
            ICE I/O error

       90   ERROR_SCALLOC
            Alloc: calloc() failed on base

       91   ERROR_SCALLOC2
            Alloc: calloc() failed on rows

       102  ERROR_SAVE_PTR
            ScrnPointers: malloc/realloc() failed


BUGS

       Large  pastes do not work on some systems.  This is not a bug in xterm;
       it is a bug in the pseudo terminal  driver  of  those  systems.   Xterm
       feeds large pastes to the pty only as fast as the pty will accept data,
       but some pty drivers do not return enough information to  know  if  the
       write has succeeded.

       When  connected to an input method, it is possible for xterm to hang if
       the XIM server is suspended or killed.

       Many of the options are not resettable after xterm starts.

       This program still needs to be rewritten.  It should be split into very
       modular  sections, with the various emulators being completely separate
       widgets that do not know about each other.  Ideally, you'd like  to  be
       able  to  pick and choose emulator widgets and stick them into a single
       control widget.

       There needs to be a dialog box to allow entry  of  the  Tek  COPY  file
       name.


SEE ALSO

       resize(1), luit(1), uxterm(1), X(7), pty(4), tty(4)

       Xterm Control Sequences (this is the file ctlseqs.ms).

       http://invisible-island.net/xterm/xterm.html
       http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
       http://invisible-island.net/xterm/xterm.faq.html


AUTHORS

       Far too many people, including:

       Loretta Guarino Reid (DEC-UEG-WSL), Joel McCormack (DEC-UEG-WSL), Terry
       Weissman (DEC-UEG-WSL), Edward Moy (Berkeley),  Ralph  R.  Swick  (MIT-
       Athena),  Mark  Vandevoorde  (MIT-Athena),  Bob McNamara (DEC-MAD), Jim
       Gettys (MIT-Athena), Bob Scheifler (MIT X Consortium), Doug Mink (SAO),
       Steve  Pitschke  (Stellar),  Ron Newman (MIT-Athena), Jim Fulton (MIT X
       Consortium), Dave Serisky (HP),  Jonathan  Kamens  (MIT-Athena),  Jason
       Bacon,  Ross Combs, Stephen P. Wall, David Wexelblat, and Thomas Dickey
       (invisible-island.net).

Patch #321                        2015-12-31                          XTERM(1)