#define EV_IS_WINDOW(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_WINDOW))
#define EV_IS_WINDOW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_WINDOW))
#define EV_WINDOW_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_WINDOW, EvWindowClass))
#define EV_IS_WINDOW(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_WINDOW))
#define EV_IS_WINDOW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_WINDOW))
#define EV_WINDOW_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_WINDOW, EvWindowClass))