gdk-sharp 2.8.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Describes a property change on a window. Gdk.Event Property Gdk.Atom The property that was changed. The property that was changed. None. Property Gdk.PropertyState Whether the property was changed, or deleted. Whether the property was changed. None. Property System.UInt32 The time of the event in milliseconds. The time of the event of milliseconds. None. Constructor Internal constructor. raw unmanaged pointer. None.