al_find_menu_item - Allegro 5 API

       Searches  in  the haystack menu for an item with the given id.  (Note that this only represents a literal
       ID, and cannot be used as an index.)

       If menu and index are not NULL, they will be  set  as  the  parent  menu  containing  the  item  and  the
       zero-based  (positive)  index  of  the  item.   (If  the  menu  item was not found, then their values are
       undefined.)

       Returns true if the menu item was found.

       al_find_menu_item - Allegro 5 API

al_find_menu(3alleg5)

Allegro reference manual                                                              al_find_menu_item(3alleg5)

       5.1.0

              #include <allegro5/allegro_native_dialog.h>

              bool al_find_menu_item(ALLEGRO_MENU *haystack, uint16_t id, ALLEGRO_MENU **menu,
                 int *index)