Debugging Qt's signal-slot connections

Qt uses the signalslot Compared with callback functions, this mechanism has the advantage that Qt automatically dis- mantles a connection if

However, it is impossible to connect two slots because the mechanism requires a signal while a slot is considered a receiver instead of a sender Therefore, if

qt connect signal slot But sometimes you can teach new tricks to an old dog, and QObjects gained a new way to connect between signals and slots in Qt5, plus some extra

qt signal and slot It is possible to connect to any member function of QObject, not only slots