update_menu - Low level function to update a menu player. Allegro game programming library.
#include <allegro.h> int update_menu(MENU_PLAYER *player);
Updates the status of a menu object returned by init_menu(). Returns TRUE if the menu is still active, or FALSE if it has terminated. Upon a return value of FALSE, it is up to you to call shutdown_menu() or to continue execution.
init_menu(3alleg), shutdown_menu(3alleg), do_menu(3alleg)