# 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)