[cxS]

Use hotkeys and listen for the Prnt Scrn button, you can do this by invoking the keys.

Then use this (I'm not vouching for it, never tried it, i don't know if it works) http://stackoverflow.com/questions/66017...ith-vb-net

You can't listen for a key system-wide or "globally" by invoking anything. Invoking has nothing to do with awaiting events. Also the code posted on that SO link, by the OP is terrible. The suggestions are the proper way if you read on. Just should be worth mentioning I thought. SendKeys to invoke the print screen key, is a very stupid/silly and lazy way of doing it.