al_get_display_event_source - Allegro 5 API

       Retrieve       the      associated      event      source.       See      the      [documentation      on
       events]ALLEGRO_EVENT_DISPLAY_EXPOSE(3alleg5) for a list of the events displays will generate.

Allegro reference manual                                                    al_get_display_event_source(3alleg5)

       al_get_display_event_source - Allegro 5 API

              #include <allegro5/allegro.h>

              ALLEGRO_EVENT_SOURCE *al_get_display_event_source(ALLEGRO_DISPLAY *display)