ALLEGRO_EVENT_QUEUE - Allegro 5 API

       An event queue holds events that have been generated by event sources that are registered with the queue.
       Events  are  stored  in  the order they are generated.  Access is in a strictly FIFO (first-in-first-out)
       order.

       ALLEGRO_EVENT_QUEUE - Allegro 5 API

al_create_event_queue(3alleg5), al_destroy_event_queue(3alleg5)

Allegro reference manual                                                            ALLEGRO_EVENT_QUEUE(3alleg5)

              #include <allegro5/allegro.h>

              typedef struct ALLEGRO_EVENT_QUEUE ALLEGRO_EVENT_QUEUE;