Adding data processing class - inherit from QObject or not ?

[Anonymous_Banned275]

If I add a C++ data processing class, do not need ANY access to widgets / GUI , to the Qt application - should it inherit from QObject?

[JonB]

@AnneRanch
If your class simply has nothing to do with Qt, it should not inherit from QObject. You should inherit from QObject --- or any other class --- if and only if your code needs to do so, for some reason.