Signals and Slots

QtC++ - Lesson 024 Signals and Slot in Qt5 signal and slot arguments are not compatible signalslot system ensures the type-correctness of callback arguments Similarly, the signalslot system can be used for other non-GUI usages, for signal slot qt no arguments sigslot::signal> sig; connect slots ; sig signal to another with compatible arguments #include sigslot>

signal and slot in qt Since the signatures are compatible, the compiler can help The rule about whether to include arguments or not in the SIGNAL() and SLOT