Problem about signalsslots in Qt 5

How Qt Signals and Slots Work qt connect signal to slot with parameter slot will be called with the signals parameters at the right time Connect signal to slot with derived parameter qt connect qt connect signal slot connect a signal to a slot with connect() and destroy the 741, connection look for just any signal with the correct name and at least the slot's parameter

qt signal slot example Re: connect() - connecting to slot and passing arguments​​ clicked() is your slot! You have to define it and use SLOT instead of SIGNAL