al_set_mouse_xy - Allegro 5 API

       Try  to  position  the mouse at the given coordinates on the given display.  The mouse movement resulting
       from a successful move will generate an ALLEGRO_EVENT_MOUSE_WARPED(3alleg5) event.

       Returns true on success, false on failure.

       al_set_mouse_xy - Allegro 5 API

al_set_mouse_z(3alleg5), al_set_mouse_w(3alleg5)

Allegro reference manual                                                                al_set_mouse_xy(3alleg5)

              #include <allegro5/allegro.h>

              bool al_set_mouse_xy(ALLEGRO_DISPLAY *display, int x, int y)