glib-sharpGtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.System.ObjectWrapper class for delegates.Constructor
a The is the object that creates the instance of the DelegateWrapper derived class or null if created from a static method.Note that the instances will never be disposed if they are created in a static method.System.Obsolete("Callback wrappers should be manually managed for persistence.")