Description: Based on the interface of MFC, the title bar is redefined, and the input operation can be performed at any position in the title bar.
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File list (Check if you may need any files):
OwnerDrawDlg
............\OwnerDrawDlg
............\OwnerDrawDlg.sln
............\............\BK.bmp
............\............\OwnerDrawDlg.aps
............\............\OwnerDrawDlg.cpp
............\............\OwnerDrawDlg.h
............\............\OwnerDrawDlg.rc
............\............\OwnerDrawDlg.vcxproj
............\............\OwnerDrawDlg.vcxproj.filters
............\............\OwnerDrawDlg.vcxproj.user
............\............\OwnerDrawDlgDlg.cpp
............\............\OwnerDrawDlgDlg.h
............\............\ReadMe.txt
............\............\res
............\............\resource.h
............\............\...\BK.bmp
............\............\...\OwnerDrawDlg.ico
............\............\...\OwnerDrawDlg.rc2
............\............\...\关闭.bmp
............\............\...\最大化.bmp
............\............\...\最小化.bmp
............\............\...\还原.bmp
............\............\stdafx.cpp
............\............\stdafx.h
............\............\targetver.h
............\............\WndTitleBtn.cpp
............\............\WndTitleBtn.h