gdk-sharp2.6.0.0Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.Determines how drawing onto a window will affect child windows of that window.None.System.EnumGLib.GType(WrapperType=typeof(Gdk.SubwindowModeGType))FieldGdk.SubwindowModeOnly draw onto the window itself.FieldGdk.SubwindowModeDraw onto the window and child windows.