gconf-sharp Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details. System.Exception This Exception is thrown when a key is not found in the user GConf file This exception is thrown by the Get methods of the ChangeSet and Client classes when a value is requested for a key that does not exist. Constructor Public constructor. Constructor a , name of the key that was not found. Public constructor.