键能发音，其关键就是让程序能够知道当前键盘上是哪个键被按下，并播放相应的声音,自己的程序当然不在话下，那么其它程序当前按下哪个键如何得知呢？利用键盘钩子便可以很好地解决。-Key to pronunciation, the key is to let the process be able to know the current keyboard on which keys are pressed, and play the corresponding sound, of course, not to mention its own procedures, then press any other key to the current procedure How do I know this? Use the keyboard hook can be a good solution.