The list's window procedure. Inheriting classes can override this to add extra functionality, but should not forget to call base.wndProc(m); to ensure the list continues to function properly.
[Visual Basic] Overrides Protected Sub WndProc( _ ByRef m As Message _ ) [C#] protected override void WndProc( ref Message m ); [C++] protected: override void WndProc( Message** m ); [JScript] protected override function WndProc( m : Message );