Protected Overridable Sub OnFailed( _
   ByVal error As Exception _
) 

Dim instance As ResourceDownloader
Dim error As Exception
 
instance.OnFailed(error)

protected virtual void OnFailed( 
   Exception error
)

protected procedure OnFailed( 
    error: Exception
); virtual; 

protected function OnFailed( 
   error : Exception
);

protected: virtual void OnFailed( 
   Exception* error
) 

protected:
virtual void OnFailed( 
   Exception^ error
)