gtk-sharp 2.0.0.0 Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details. To be added. To be added. Event handler. The following events utilize this delegate: Event data is passed via the parameter. To attach a to an event, add the RowChangedHandler instance to the event. The methods referenced by the RowChangedHandler instance are invoked whenever the event is raised, until the RowChangedHandler is removed from the event. System.Delegate System.Void