Introduction to Qt QML

20 ways to debug Qt signals and slots qt connect signal to slot with parameter Compare the signature string to see if the arguments match Use the information provided my the moc to find the index of the signal and of the slot qt slot signal Have a look at the declaration of the static connect function: C++ connect(const QObject *sender, const char *signal, const QObject

qt connect signal to slot Qt's signals and slots mechanism ensures that if you connect a signal to a slot, the slot will be called with the signal's parameters at the right time