Description: Undo button action drop-down button, and the realization of the drop-down list, click cancel or return through the list in a column
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File list (Check if you may need any files):
8bcmenu.cpp
8bcmenu.h
ChildFrm.h
MainFrm.cpp
MainFrm.h
MEMDC.H
ReadMe.txt
Release
.......\UndoDemo.exe
res
resource.h
...\cursor_d.cur
...\Toolbar.bmp
...\UndoDemo.ico
...\UndoDemo.rc2
...\UndoDemoDoc.ico
StdAfx.cpp
StdAfx.h
UndoDemo.clw
UndoDemo.cpp
UndoDemo.dsp
UndoDemo.dsw
UndoDemo.h
UndoDemo.rc
UndoDemoDoc.cpp
UndoDemoDoc.h
UndoDemoView.cpp
UndoDemoView.h
UndoHistoryPopup.cpp
UndoHistoryPopup.h
zChildFrm.cpp