The package of COM, non-blocking mode of a VC code is good, hope your reference!

lscommdemo2\lsCommDemo\BCMenu.cpp
...........\..........\BCMenu.h
...........\..........\BtnST.cpp
...........\..........\BtnST.h
...........\..........\ComPort.cpp
...........\..........\ComPort.h
...........\..........\ComPropertyDlg.cpp
...........\..........\ComPropertyDlg.h
...........\..........\copyright.bat
...........\..........\Debug\BCMenu.obj
...........\..........\.....\BtnST.obj
...........\..........\.....\BuildLog.htm
...........\..........\.....\ComPort.obj
...........\..........\.....\ComPropertyDlg.obj
...........\..........\.....\LsCommDemo.exe
...........\..........\.....\LsCommDemo.exe.embed.manifest
...........\..........\.....\LsCommDemo.exe.embed.manifest.res
...........\..........\.....\LsCommDemo.exe.intermediate.manifest
...........\..........\.....\LsCommDemo.ilk
...........\..........\.....\LsCommDemo.obj
...........\..........\.....\LsCommDemo.pch
...........\..........\.....\LsCommDemo.pdb
...........\..........\.....\LsCommDemo.res
...........\..........\.....\LsCommDemoDlg.obj
...........\..........\.....\mt.dep
...........\..........\.....\serialport.obj
...........\..........\.....\stdafx.obj
...........\..........\.....\vc90.idb
...........\..........\.....\vc90.pdb
...........\..........\LsCommDemo.aps
...........\..........\LsCommDemo.clw
...........\..........\LsCommDemo.cpp
...........\..........\LsCommDemo.dsp
...........\..........\LsCommDemo.dsw
...........\..........\LsCommDemo.h
...........\..........\LsCommDemo.ncb
...........\..........\LsCommDemo.plg
...........\..........\LsCommDemo.rc
...........\..........\LsCommDemo.sln
...........\..........\LsCommDemo.sln.old
...........\..........\LsCommDemo.suo
...........\..........\LsCommDemo.suo.old
...........\..........\LsCommDemo.vcproj
...........\..........\LsCommDemo.vcproj.7.00.old
...........\..........\LsCommDemo.vcproj.PC-201207101026.aaaaa.user
...........\..........\LsCommDemoDlg.cpp
...........\..........\LsCommDemoDlg.h
...........\..........\ReadMe.txt
...........\..........\res\Cancel1_32x32x16.ico
...........\..........\...\LsCommDemo.ico
...........\..........\...\LsCommDemo.manifest
...........\..........\...\LsCommDemo.rc2
...........\..........\...\Ok3_32x32x256.ico
...........\..........\Resource.h
...........\..........\serialport.cpp
...........\..........\serialport.h
...........\..........\StdAfx.cpp
...........\..........\StdAfx.h
...........\..........\UpgradeLog.XML
...........\..........\_UpgradeReport_Files\UpgradeReport.css
...........\..........\....................\UpgradeReport.xslt
...........\..........\....................\UpgradeReport_Minus.gif
...........\..........\....................\UpgradeReport_Plus.gif
...........\..........\Debug
...........\..........\res
...........\..........\_UpgradeReport_Files
...........\lsCommDemo
lscommdemo2

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