Automatically Connect Signals and Slots

Qt already provides signals and slots for its classes, which you can use in your application For example, QPushButton has a signal clicked() , which will be

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 arguments are not compatible 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

signal slot qt qt signal slotIn that respect, Queen Cleopatra straddles that multi-millennial divide uneasily, but let's be frank: we're not playing this game to learn