Problem with signalslot carrying pointer - qt

signal and slot in qt   Dan signal and slot qt

Sometimes it's useful to establish a connection between a signal and a slot that should be activated only once This is not how signalslot

There are three ways to connect to signals from objects in your Qt Designer UI We've already QTCreator · Pour connecter le signal Action au slot de fermeture de fenêtre, il faut choisir le 2° bouton de la barre d'outils de QT Designer · Le menu Quitter

server slot Signals and slots is a language construct introduced in Qt for communication between objects which makes it easy to implement the observer pattern while When one QObject instance is the receiver of a signal, its thread affinity is checked, and by default the signal is delivered directly as a