gtk-sharp Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. System.Enum GLib.GType(typeof(Gtk.SizeGroupModeGType)) Determine the direction that is affected by a . The mode of the determines the directions in which the affects the requested sizes of its component widgets. Field Gtk.SizeGroupMode Affects widget size requisitions both horizontally and vertically. Field Gtk.SizeGroupMode Affects widget size requisitions horizontally. Field Gtk.SizeGroupMode Has no effect on widget size requisitions. Field Gtk.SizeGroupMode Affects widget size requisitions vertically.