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menu_win 3x



menu_win(3x)                                               menu_win(3x)




NAME

       menu_win  - make and break menu window and subwindow asso-
       ciations


SYNOPSIS

       #include <menu.h>
       int set_menu_win(MENU *menu, WINDOW *win);
       WINDOW *menu_win(const MENU *menu);
       int set_menu_sub(MENU *menu, WINDOW *sub);
       WINDOW *menu_sub(const MENU *menu);
       int scale_menu(const MENU *menu, int *rows, int *columns);


DESCRIPTION

       Every menu has an associated pair of curses windows.   The
       menu  window displays any title and border associated with
       the window; the menu subwindow displays the items  of  the
       menu that are currently available for selection.

       The first four functions get and set those windows.  It is
       not necessary to set either window; by default, the driver
       code uses stdscr for both.

       In  the set_ functions, window argument of NULL is treated
       as though it were stsdcr.  A  menu  argument  of  NULL  is
       treated  as  a  request  to change the system default menu
       window or subwindow.

       The function scale_menu returns the minimum size  required
       for the subwindow of menu.


RETURN VALUE

       Routines  that return pointers return NULL on error.  Rou-
       tines that return an integer return one of  the  following
       error codes:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
            System error occurred (see errno).

       E_BAD_ARGUMENT
            Routine  detected  an incorrect or out-of-range argu-
            ment.

       E_POSTED
            The menu has already been posted.

       E_NOT_CONNECTED
            No items are connected to the menu.


SEE ALSO

       curses(3x), curs_variables(3x), menu(3x).


NOTES

       The header file <menu.h> automatically includes the header
       file <curses.h>.


PORTABILITY

       These  routines  emulate  the System V menu library.  They
       were not supported on Version 7 or BSD versions.


AUTHORS

       Juergen Pfeifer.  Manual  pages  and  adaptation  for  new
       curses by Eric S. Raymond.



                                                           menu_win(3x)

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