I have a wireless keyboard and mouse that doesn\'t have any lock indicators, nor any software bundled to provide a visual aid, so I\'m making my own.
I got it so that if
Look at the following article on global keyboard events. When one of the locks keys is pressed you could update your UI...
http://www.codeproject.com/Articles/7294/Processing-Global-Mouse-and-Keyboard-Hooks-in-C