I created a full-screen application, which should be always on top (until user lock or end session). It is created in WPF. The one thing, that I don't know how to solve is how to put this application over screensaver.I don't even know if it is possible? Sorry, but I can't provide any code used to obtain that, because none of my ideas work.
For now - always on top means, that my window has property "Topmost" set to true.