DirectInput reads keyboard even without focus

[Jimmy Valavanis]

Originally Posted by jdarling
Yep, this has been around since win 3.1 days. If you look at GetAsyncKeyState you can use it to read a key at any time, even if your application is running under another logged in user session . Quite useful at times, and a known security loophole in ALL versions of windows.

Suprizes me! I've never used GetAsyncKeyState but now I understand that reading the keyboard input of another application can be easily achieved.

NOTE: MSDN QuickInfo reports that GetAsyncKeyState() requires at least Windows 95, or Windows NT 3.1. Was supported by Windows 3.1?