gtk-sharp0.0.0.0Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.Delegate function to specify the shape of comparison functions for tree iterators.Functions with this call syntax are usually used for comparison between two tree iterators as part of a sort. (FIXME: provide better examples.)System.DelegateSystem.ICloneableSystem.Runtime.Serialization.ISerializableSystem.Int32