Based on the dialog box procedure. Button to set up a button, and then set up an event, button button to trigger this event, the thread between response and set up a SendMessage

Demo
....\Debug
....\Demo.aps
....\Demo.clw
....\Demo.cpp
....\Demo.dsp
....\Demo.dsw
....\Demo.h
....\Demo.ncb
....\Demo.opt
....\Demo.plg
....\Demo.rc
....\DemoDlg.cpp
....\DemoDlg.h
....\ReadMe.txt
....\res

....\...\Demo.rc2
....\Resource.h
....\StdAfx.cpp
....\StdAfx.h
demo.txt

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