menu_format − set and get menu sizes
int set_menu_format(MENU *menu, int rows, int cols);
void menu_format(const MENU *menu, int *rows, int *cols);
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.
These routines returns one of the following:
The routine succeeded.
System error occurred (see errno).
Routine detected an incorrect or out-of-range argument.
The menu is already posted.
No items are connected to the menu.
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.
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