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