Callbacks vs signal - slot : rQt5

Type-safe Signals and Slots in C++: Part 2 signal and slot connect(ui->pushButton, SIGNAL(clicked()), this, SLOT(pushButton_Clicked())); With this syntax, the button clicked() signal will be received by MainWindow signal and slot arguments are not compatible Pour qu'un bouton puisse être utile, il faut connecter le signal clicked() à un slot ayant la même signature Le slot du receveur connecté au signal ;

signal slot qt Signals and Slots · loose coupling: The key advantage of the signals and slots is that the caller does not have to know anything about the receiver and vice