al_get_x_window_id(3alleg5) Allegro reference manual
NAME
al_get_x_window_id − Allegro 5 API
SYNOPSIS
#include <allegro5/allegro_x.h>
XID al_get_x_window_id(ALLEGRO_DISPLAY *display)
DESCRIPTION
Retrieves the XID associated with the Allegro display.
SINCE
5.1.12