#define EV_IS_DSCWINDOW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_DSCWINDOW))
#define EV_DSCWINDOW_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_DSCWINDOW, EvDSCWindowClass))
#define EV_IS_DSCWINDOW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_DSCWINDOW))
#define EV_DSCWINDOW_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_DSCWINDOW, EvDSCWindowClass))