al_get_touch_input_event_source - Allegro 5 API

       Returns   the   global   touch   input   event   source.    This  event  source  generates  [touch  input
       events]ALLEGRO_EVENT_TOUCH_BEGIN(3alleg5).

       al_get_touch_input_event_source - Allegro 5 API

ALLEGRO_EVENT_SOURCE(3alleg5), al_register_event_source(3alleg5)

Allegro reference manual                                                al_get_touch_input_event_source(3alleg5)

       5.1.0

              #include <allegro5/allegro.h>

              ALLEGRO_EVENT_SOURCE *al_get_touch_input_event_source(void)