shutdown_menu - Destroys a menu player object returned by init_menu().
Allegro game programming library.
#include <allegro.h>
int shutdown_menu(MENU_PLAYER *player);
Destroys a menu player object returned by init_menu(), returning the
index of the menu item that was selected, or -1 if the menu was
cancelled (this is the same as the return value from do_menu()).
init_menu(3alleg), update_menu(3alleg)