How we can connect the signals and slot with different arguments?

Performance comparison of the Qt Signals and Slots mechanism qt connect signal to slot with parameter QObject::connect() can use standard string values for Signal and Slot parameters · QObject::connect() can use standard string values for Signal and a lambda for qtech slot As can be seen, in a queued connection, the number of copies made depends on the type of the parameter in the signal and the argument in the

qt slot signal I am seeing connect() with 3 or 4 parameters It looks like the rule is that with 4 parameters, we can get the required type of the 2nd