How Qt Signals & Slots Work

Qt Designer Signals And Slots Tutorial signal and slot qt Определение и связь сигналов и слотов в приложении на Qt и С++, секция signals и slots, генерация сигнала, функция QObject::connect signal and slot qt QT library · Qt::DirectConnection

signal slot Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time