gdk-sharp 0.0.0.0 neutral Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. Generated when the state of a toplevel window changes. Gdk.Event Property Gdk.WindowState Mask specifying what flags have changed. Mask specifying what flags have changed. None. Property Gdk.WindowState The new window state. The new window state. None. Constructor Internal constructor. raw unmanaged pointer. A new None.