How can I prevent users from taking screenshots of my application window?

Posted by Midday on Stack Overflow See other posts from Stack Overflow or by Midday
Published on 2009-01-18T18:20:53Z Indexed on 2010/03/17 5:41 UTC
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Windows

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printscreen

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security

What are some methods to prevent screenshots from being taken, if any?

I've considered setting the "Print Screen" button as a hotkey, which makes the window fuzzy. However, there would be the problem of other 3rd party screenshot tools. How can I prevent their use?

Why would I want such a thing?

The idea is to create a chat client which you can't share the chatted information with others, not by copy & paste nor by print screen...

Looking for general ideas or suggestions rather than actual code.

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