Protected Overridable Sub OnMouseLeftButtonDown( _
   ByVal e As MouseButtonEventArgs _
) 

Dim instance As ISDragableHeaderedHierarchicalMultipleSelectionControl
Dim e As MouseButtonEventArgs
 
instance.OnMouseLeftButtonDown(e)

protected virtual void OnMouseLeftButtonDown( 
   MouseButtonEventArgs e
)

protected procedure OnMouseLeftButtonDown( 
    e: MouseButtonEventArgs
); virtual; 

protected function OnMouseLeftButtonDown( 
   e : MouseButtonEventArgs
);

protected: virtual void OnMouseLeftButtonDown( 
   MouseButtonEventArgs* e
) 

protected:
virtual void OnMouseLeftButtonDown( 
   MouseButtonEventArgs^ e
)