Signals and slots

Signals and slots signal and slot Each PyQt widget, which is derived from QObject class, is designed to emit 'signal' in response to one or more events The signal on its own does not perform signal and slot in qt To use signals and slots for implementing loose coupling, it must be easy to connect signals and slots that only partially match signatures

signal and slot in qt All classes that inherit from QObject or one of its subclasses, like QWidget can contain signals and slots Signals are emitted by objects when they change

signal and slot Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism 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