set_menu_mark, menu_mark - get and set the menu mark string

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

       In order to make menu selections visible on older terminals 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).

set_menu_mark, menu_mark - get and set the menu mark string

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

       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 argument.

       E_SYSTEM_ERROR
            System error occurred (see errno(3)).

ncurses(3NCURSES), menu(3MENU)

ncurses 6.5                                        2024-12-28                                        mark(3MENU)

#include<menu.h>intset_menu_mark(MENU*menu,constchar*mark);constchar*menu_mark(constMENU*menu);