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menu_format 3x 2024-03-16 ncurses 6.5 Library calls

menu_format(3x)                  Library calls                 menu_format(3x)

NAME

       set_menu_format, menu_format - set and get menu sizes

SYNOPSIS

       #include <menu.h>

       int set_menu_format(MENU *menu, int rows, int cols);
       void menu_format(const MENU *menu, int *rows, int *cols);

DESCRIPTION

       The function set_menu_format sets the maximum display size of the given
       menu.  If this size is too small to display all menu  items,  the  menu
       will  be  made  scrollable.   If  this  size  is  larger than the menus
       subwindow and the subwindow is too small to  display  all  menu  items,
       post_menu will fail.

       The  default format is 16 rows, 1 column.  Calling set_menu_format with
       a null menu pointer will change this default.  A  zero  row  or  column
       argument  to  set_menu_format is interpreted as a request not to change
       the current value.

       The function menu_format returns the maximum-size constraints  for  the
       given menu into the storage addressed by rows and cols.

RETURN VALUE

       These routines returns one of the following:

       E_OK The routine succeeded.

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

       E_BAD_ARGUMENT
            Routine detected an incorrect or out-of-range argument.

       E_POSTED
            The menu is already posted.

       E_NOT_CONNECTED
            No items are connected to the menu.

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.

SEE ALSO

       curses(3x), menu(3x)



ncurses 6.5                       2024-03-16                   menu_format(3x)