File list (Check if you may need any files):
9.1可拖拽的树形控件
...................\DDTreeCtrl.clw
...................\DDTreeCtrl.cpp
...................\DDTreeCtrl.dsp
...................\DDTreeCtrl.dsw
...................\DDTreeCtrl.h
...................\DDTreeCtrl.ncb
...................\DDTreeCtrl.opt
...................\DDTreeCtrl.plg
...................\DDTreeCtrl.rc
...................\DDTreeCtrlApp.cpp
...................\DDTreeCtrlApp.h
...................\DDTreeCtrlDlg.cpp
...................\DDTreeCtrlDlg.h
...................\ReadMe.txt
...................\res
...................\...\DDTreeCtrl.rc2
...................\resource.h
...................\StdAfx.cpp
...................\StdAfx.h