GFX_DIRECTX : constant Gfx_Detect_Type;
GFX_DIRECTX_ACCEL : constant Gfx_Detect_Type;
GFX_DIRECTX_SAFE : constant Gfx_Detect_Type;
GFX_DIRECTX_SOFT : constant Gfx_Detect_Type;
GFX_DIRECTX_WIN : constant Gfx_Detect_Type;
GFX_DIRECTX_OVL : constant Gfx_Detect_Type;
GFX_GDI : constant Gfx_Detect_Type;