gdk-sharpGtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.GLib.SignalArgsEvent data.The event invokes delegates which pass event data via this class.ConstructorPublic Constructor.Create a new instance with this constructor if you need to invoke a delegate.PropertySystem.Int32The height of the screen area that was updated.A PropertySystem.Int32The width of the screen area that was updated.A PropertySystem.Int32The X coordinate of the upper left point in the updated area.A PropertySystem.Int32The Y coordinate of the upper left point in the updated area.A