用树控件列出Windows所有的硬件。且图标是系统图标，与系统图标完全一致。-List all devices use Tree.

经过编译验证的VC++ GUI例子，涵盖停靠栏、tab控件、树型控件以及工具条状态控制等功能应用，非常适合VC++ MFC学习。-Compiled validated VC++ GUI example, covers the dock, tab controls, tree controls, and tools of state control and other functional applications, ideal for VC++ MFC learning.

了解基本的树状控件，实现读取系统资源管理器-used for read the computer treeview