Getting the most of signalslot connections in Qt

I know it is happening with the newer connect style, I can't remember if we had an example using the older style

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qt connect signal to slot 3 Answers 3 Don't do it like this, hide your button in the class A, emit your own defined signal from class A lets call it OnButtonClicked

qt signal slot example With the Qt signal and Qt slot concept, Qt takes a slightly different approach This Concept has the advantage that Qt automatically disconnects