Prefer to use normalised signalslot signatures

Signal 과 Slot - Ziks signal and slot 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 signal and slot arguments are not compatible 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

signal and slot 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