I'm kind of surprised we can't edit our posts...oh well Just a quick question for those that may know... What would the effect of changing: @@ static int dinput_mouse_hook( LPDIRECTINPUTDEVICE8A iface, WPARAM wparam, LPARAM into this: @@ static void dinput_mouse_hook( LPDIRECTINPUTDEVICE8A iface, WPARAM wparam, LPARAM