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

al_get_monitor_info - Allegro 5 API

#include <allegro5/allegro.h>
bool al_get_monitor_info(int adapter, ALLEGRO_MONITOR_INFO *info)
    

Get information about a monitor's position on the desktop. adapter is a number from 0 to al_get_num_video_adapters()-1.

On Windows, use al_set_new_display_flags(3alleg5) to switch between Direct3D and OpenGL backends, which will often have different adapters available.

Returns true on success, false on failure.

ALLEGRO_MONITOR_INFO(3alleg5), al_get_num_video_adapters(3alleg5)

Allegro reference manual