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
               cursorOffTime 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.

       +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.  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.

       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, and
                    newlines changed to single spaces.

               %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-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, Stephen P. Wall, David Wexelblat, and Thomas Dickey  (invisible-
       island.net).

Patch #317                        2015-03-20                          XTERM(1)