gtk-sharp0.0.0.0Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.A delegate for methods that handle tree cell data.Methods with this shape are used to specify how to fill in tree data; see for example for one place where this class is used as a parameter.System.DelegateSystem.ICloneableSystem.Runtime.Serialization.ISerializableSystem.Void