gtk-sharp 2.10.0.0 System.Delegate System.Void Event sender. Event arguments. Event handler. The event utilizes this delegate: Event data is passed via the parameter. To attach a to an event, add the PrinterStatusChangedHandler instance to the event. The methods referenced by the PrinterStatusChangedHandler instance are invoked whenever the event is raised, until the PrinterStatusChangedHandler is removed from the event.