Public Delegate Sub MouseButtonEventHandler( _
   ByVal sender As Object, _
   ByVal e As MouseButtonEventArgs _
) 

Dim instance As New MouseButtonEventHandler(AddressOf HandlerMethod)

public delegate void MouseButtonEventHandler( 
   object sender,
   MouseButtonEventArgs e
)

public delegate MouseButtonEventHandler( 
    sender: TObject;
    e: MouseButtonEventArgs
);

public delegate MouseButtonEventHandler( 
   sender : Object,
   e : MouseButtonEventArgs
)

public: __gc __delegate void MouseButtonEventHandler( 
   Object* sender,
   MouseButtonEventArgs* e
)

public delegate void MouseButtonEventHandler( 
   Object^ sender,
   MouseButtonEventArgs^ e
)