Thread: Signalslot between widgets

Thread: Signalslot between widgets signal and slot qt This page was used to describe the new signal and slot syntax during its development The feature is now released with Qt 5 signal and slot I develop C++ QT applications and analyze with sonarqube Headers have signal and slots, and sonar shows them as unused function which is

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

signal and slot arguments are not compatible Welcome to Signals and Slots in Qt Qt Signal & Slot implementation is deterministic, but it's using QVariant to box and then unbox values, so there is definitely a performance