键盘协奏曲，利用hook技术对键盘进行截获，并根据不同的按键发出不同的声音-Keyboard Concerto, the use of technology on the keyboard hook to intercept, and issued according to different keys for different voices

键盘钩子程序源码。提供了基于Hook的键盘钩子程序。-Keyboard hook program source. Provided based on the Hook of the keyboard hook procedure.