gtk-sharp2.12.0.0Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.The method to use when making the curve.System.EnumGLib.GType(typeof(Gtk.CurveTypeGType))FieldGtk.CurveTypelinear interpolationFieldGtk.CurveTypespline interpolationFieldGtk.CurveTypefree form curve