First off, I tried to comment the code as much as possible to save you the pains I went through. These programs are pretty simple and are meant for demonstration purposes. As always, you should not put them into a production environment without full testing first!
首先，我试着尽可能多的解释这些代码来让你少走一些我走过的弯路。这些程序相当简单并且适合作范例。按照惯例，你不应该没有全面地测试就把他们置于开发环境中!
来源: http://www.codeguru.com/advancedui/ProcessMB.htm