format(3MENU) Library calls format(3MENU)
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 subwin-
dow 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 argu-
ment 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 sup-
ported on Version 7 or BSD versions.
AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S.
Raymond.
SEE ALSO
ncurses(3NCURSES), menu(3MENU)
ncurses 6.5 2024-03-16 format(3MENU)
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