Well, there is a common confusion for many who are working with WPF objects, is does it truly interoperable with Windows environment, or more precisely, does it act the same way as it does with normal Win32 objects? The problem here comes with the fact that each WPF window has only one window handle (HWND) and each other controls are actually placed as content to the window and does not have any entry on Kernel table(no HWND) except of course Popup class in WPF. In this post I will try to cover the basis of HWND (for those of you who don't know) and later go on with what are the changes of it with WPF environment.
