How to correctly specify Signals/slots for this case?

Question

Qt

In general, there are two classes, one defines a Slot, the other a signal. How to connect them correctly so that there are no errors?
Based on Qt 5.2.1 (GCC 4.8.2, 64 bit)
I haven't tried everything. If I put Q_OBJECT in both classes and inherit from QObject, the compiler swears on inheritance, if I leave it in only one class, then the compiler says that the signal was not found, what to do?

Answer 1

Qobject is a full-fledged class, so the errors that you have during the compilation process are solved by carefully reading the error into the text or googling it.