It's not possible to catch keystrokes in other windows.
If you're making a keylogger (which you hopefully aren't), you can try continuous screengrabs, clipboard monitoring or "form grabbing".
I think he want that when by example the user press "F3" run a function like several programs for make a screen capture movie or other...
It's surely possible... I saw something about "UserHook" in C# but don't remember where I found that sorry...
It's not possible to catch keystrokes in other windows.
If you're making a keylogger (which you hopefully aren't), you can try continuous screengrabs, clipboard monitoring or "form grabbing".
I would like to write a simple clipboard tool. I think it is not so unsecurly and it is possible. I found the clipboard library on forum but i need to catch the Ctrl+C event and the other clipboard shortcut when my app isn't focused.
I think I write a simple timer which catch the clipboard any seconds but it isn't a so nice solution