get_gfx_mode - Man Page

#include <allegro.h>

int get_gfx_mode();

This function will let you determine which graphics driver is currently set by allegro. If no graphics driver is set, it will return GFX_NONE.

Returns the id of the current graphics driver if there is one, or GFX_NONE if none is set.

set_gfx_mode(3), is_windowed_mode(3)

get_gfx_mode_type(3).