ctreectrl控件扩展类，实现树型控件的可拖拽-ctreectrl controls extension of the class and realize the tree may drag control

使用树形控件实现目录结构的展开和选择,跟目录为磁盘驱动器和桌面-using tree controls to achieve by launching the directory structure and options for the directory disk drives and desktop

一个树形表格类，结合了CTreeCtrl和CListCtrl的功能，在SuperGrid一基础上加入了多选功能-This is a TreeListView class, which is modified on SuperGrid source code, add multi select function.