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How to create a single-user Qt application on Windows?

I wonder how to create an application that could have only one instance of it running on the host OS at a time ... a so-called single-screen application. I wonder how to create such a single-point C ++ application in Qt?

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You can use the class QtSingleApplicationfrom Qt Solutions. Please note that this is not a standard Qt class. You must download it from gitorious

The QtSingleApplication component provides application support that can be run only once for each user.

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When starting the application, create a file. When the application ends, delete the file.

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