QSettings - counting how many times my app has been opened
Solved
General and Desktop
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How can I make qt counting how many times my app has been opened ? I tried QtSettings but I do not know how to initialize first time the counter so the next time I restart the app, the counter get the value from QSettings, not from initialized value. I tried to do that in the main windows constructor.
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It's basic usage of QSettings, just give it a default value:
int i = settings.value("counter", 0).toInt(); settings.setValue("counter", ++i);Actually it's clearly stated in the documentation, and also it's said that if the settings isn't found (hasn't been set previously), it returns a null QVariant which means 0 as an int, so you don't even have to give it the default value.