Visual Studio MFC MDI , close warning Save changes to xxxx.txt?

[gsegria]

I created a Visual Studio MFC MDI with RichEditView.

I open 001.txt and close 001.txt , no change any words.

But there were a warning box "Save changes to xxxx.txt"

I reviewed my code in Doc.cpp and View.cpp , i didn't find any abnormal.




Any possibility?




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