在vb程序之间，在vc和vb程序之间传递自定义消息，实现进程间的通讯-examples about how to transport messages between vb and vc，vb and vb processes

打开windwos自带的记事本程序，点击按钮，后台向记事本发送键盘信息-Windwos open Notepad program, click the button to send back the information to the notebook keyboard