.NET Window Capture

Good day,

I would like to know if the .NET framework gives you a way to retrive the littles thumbnails Windows XP+ generates w开发者_StackOverflow中文版hen you alt+tab.

The application I try to make should be able to get a window capture (ALT+PrtScr) of another Window that is not necessary Active and could be partially or completly hidden behind another one.

I tried the codes found there VB.NET Window Screen Capture (ALT+PRINTSCREEN) with no success in the case the window I'm trying to capture is not visible.

I do not believe that is possible to capture a hidden window. That's why I'm looking forward the windows generated thumbnails instead.

Anyone got a hint ?

Thank you in advance.

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I know this might not be exactly what you are looking for but here Microsoft Powertoy Taskswitch that does exactly (as it sounds) what you are trying to do. You could us a disassembler to see what api's they are using to force drawing of those windows. If you would like help with that, let me know.