menu_mark(3x)                                             menu_mark(3x)
       menu_mark - get and set the menu mark string
       #include <menu.h>
       int set_menu_mark(MENU *menu, const char *mark);
       const char *menu_mark(const MENU *menu);
       In  order  to make menu selections visible on older termi-
       nals without highlighting or color  capability,  the  menu
       library  marks  selected  items  in  a  menu with a prefix
       string.
       The function set_menu_mark sets the mark  string  for  the
       given  menu.   Calling set_menu_mark with a null menu item
       will abolish the mark  string.   Note  that  changing  the
       length  of  the  mark  string for a menu while the menu is
       posted is likely to produce unhelpful behavior.
       The default string is "-" (a dash). Calling  set_menu_mark
       with a non-NULL menu argument will change this default.
       The  function menu_mark returns the menu's mark string (or
       NULL if there is none).
       The function menu_mark returns a  pointer  (which  may  be
       NULL).  It does not set errno.
       The  function set_menu_mark may return the following error
       codes:
       E_OK The routine succeeded.
       E_BAD_ARGUMENT
            Routine detected an incorrect or  out-of-range  argu-
            ment.
       E_SYSTEM_ERROR
            System error occurred (see errno).
       curses(3x), menu(3x).
       The header file <menu.h> automatically includes the header
       file <curses.h>.
       These routines emulate the System V  menu  library.   They
       were not supported on Version 7 or BSD versions.
       Juergen  Pfeifer.   Manual  pages  and  adaptation for new
       curses by Eric S. Raymond.
                                                          menu_mark(3x)