应用程序动态挂钩，本代码包含一个简单的键盘钩子的做法，简单明料，很快就帮你手把手的做一个键盘钩子文件。主要函数setwindowshookex,callnexthookex-Dynamically linked applications, the code contains a simple keyboard hook approach, simple-ming Liu, quickly help you to do hands-on document of a keyboard hook. The main function setwindowshookex, callnexthookex