Public Sub MouseDown( _
   ByVal Button As Integer, _
   ByVal Shift As Integer, _
   ByVal X As Integer, _
   ByVal Y As Integer _
) 

public void MouseDown(
   int Button, 
   int Shift, 
   int X, 
   int Y
);

public: void MouseDown(
   int Button, 
   int Shift, 
   int X, 
   int Y
);

public  mouseDown(
   ppInteger Button, 
   ppInteger Shift, 
   int X, 
   int Y
);

public: HRESULT MouseDown(
   int Button, 
   int Shift, 
   long X, 
   long Y
);