doubt on QDateTime of an executable program.

[Lingfa Yang]

Hello,

I have a Qt application, when being executed, I wish to know how long it 
was modified or created.
What I did is:
   QString program = QCoreApplication::applicationDirPath() + "/" + 
QFileInfo(argv[0]).fileName();
   QDateTime currentDateTime = QDateTime::currentDateTime();
   QDateTime lastModified = QFileInfo(program).lastModified ();
   QDateTime created = QFileInfo(program).created();
My doubt is when I copy the program from the original directory to a new 
directly, the date and time changed. Why?
(I'm in Windows XP, VS2005, Qt4.3)

Thanks in advance,
Lingfa

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