Public Delegate Sub ButtonClickEventHandler( _
   ByVal sender As Object, _
   ByVal e As ButtonEventArgs _
) 

Dim instance As New ButtonClickEventHandler(AddressOf HandlerMethod)

public delegate void ButtonClickEventHandler( 
   object sender,
   ButtonEventArgs e
)

public delegate ButtonClickEventHandler( 
    sender: TObject;
    e: ButtonEventArgs
);

public delegate ButtonClickEventHandler( 
   sender : Object,
   e : ButtonEventArgs
)

public: __gc __delegate void ButtonClickEventHandler( 
   Object* sender,
   ButtonEventArgs* e
)

public delegate void ButtonClickEventHandler( 
   Object^ sender,
   ButtonEventArgs^ e
)