DOKK / manpages / debian 10 / allegro5-doc / al_get_d3d_device.3alleg5.en
al_get_d3d_device(3alleg5) al_get_d3d_device(3alleg5)

al_get_d3d_device - Allegro 5 API

#include <allegro5/allegro_direct3d.h>
LPDIRECT3DDEVICE9 al_get_d3d_device(ALLEGRO_DISPLAY *display)
    

Returns the Direct3D device of the display. The return value is undefined if the display was not created with the Direct3D flag.

Returns: A pointer to the Direct3D device.

Allegro reference manual