how to capture screen from another desktop?(CreateDesktop)

if one desktop isn't the current desktop，so，windows will not draw it .then capt开发者_运维问答ure the screen by DC was not work.

help me!!!

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The best you can do is to use the technique described in this article:

http://www.fengyuan.com/article/wmprint.html

Basically, you have to fool the applications on the other desktop to redraw their windows into a DC of your choice. I did this once - it can be made to work, but it's by no means trivial.

There are many drawbacks - e.g. don't expect to be able to show a nice Aero style composited desktop.