'Declaration
Public Event ViewerMouseUp As GdViewer.ViewerMouseUpEventHandler
public event GdViewer.ViewerMouseUpEventHandler ViewerMouseUp
public event ViewerMouseUp: GdViewer.ViewerMouseUpEventHandler;
In JScript, you can handle the events defined by another class, but you cannot define your own.
public: __event GdViewer.ViewerMouseUpEventHandler* ViewerMouseUp
public: event GdViewer.ViewerMouseUpEventHandler^ ViewerMouseUp