Keeping a window always on top — including menus (win32)

Question

I would like to have a layered window that is always-on-top, which I can accomplish, but there are certain screen elements that still get drawn over it, such as menus (including the start menu).

Is there any way to make a window or child window of my application have a high enough top-ness property that it will draw over another application's menus? Or is there something built in to windows that ensures that menus in the currently active application are always drawn on top?

In fact, I don't really understand all that well how menus work. So it might not even make any sense for me to try to make my window "act like a menu" in hopes of making it cover more things.

Answer 1

There's only one level of TopMost, you'll compete with any other program that insists on being top-most. Try osk.exe for example. I'm guessing it uses a WH_SHELL hook to win.