添加拖动特性到我的现存的应用程序，visual c++ 界面编程

添加拖动特性到我的现存的应用程序，visual c++ 界面编程-add to the drag characteristics of the existing applications, visual programming interface c

data
AnotherTest.txt
otherdata.txt
sampledata.txt
Step0
Interface.cpp
Interface.dsp
Interface.dsw
Interface.h
Interface.rc
InterfaceDoc.cpp
InterfaceDoc.h
InterfaceView.cpp
InterfaceView.h
MainFrm.cpp
MainFrm.h
res
resource.h
StdAfx.cpp
StdAfx.h
Step1
DropDialog.cpp
DropDialog.h
Interface.cpp
Interface.dsp
Interface.dsw
Interface.h
Interface.rc
InterfaceDoc.cpp
InterfaceDoc.h
InterfaceView.cpp
InterfaceView.h
MainFrm.cpp
MainFrm.h
OtherDropDialog.cpp
OtherDropDialog.h
OtherDropDialogThread.cpp
OtherDropDialogThread.h
res
resource.h
StdAfx.cpp
StdAfx.h
Step2
DropDialog.cpp
DropDialog.h
Interface.cpp
Interface.dsp
Interface.dsw
Interface.h
Interface.rc
InterfaceDoc.cpp
InterfaceDoc.h
InterfaceView.cpp
InterfaceView.h
MainFrm.cpp
MainFrm.h
res
resource.h
StdAfx.cpp
StdAfx.h
Step3
DropDialog.cpp
DropDialog.h
Interface.cpp
Interface.dsp
Interface.dsw
Interface.h
Interface.rc
InterfaceDoc.cpp
InterfaceDoc.h
InterfaceDropTarget.cpp
InterfaceDropTarget.h
InterfaceView.cpp
InterfaceView.h
MainFrm.cpp
MainFrm.h
res
resource.h
StdAfx.cpp
StdAfx.h
Step3 generic
DropDialog.cpp
DropDialog.h
Interface.cpp
Interface.dsp
Interface.dsw
Interface.h
Interface.rc
InterfaceDoc.cpp
InterfaceDoc.h
InterfaceView.cpp
InterfaceView.h
MainFrm.cpp
MainFrm.h
res
resource.h
StdAfx.cpp
StdAfx.h
TBTextTarget.cpp
TBTextTarget.h