SIGNALSLOT + Arguments - QObject::connect

How Qt Signals and Slots Work signal and slot arguments are not compatible And when there is a free standing function there is a signature, but there is no instance, so the third and the fourth arguments of the first signal and slot qt QObject::connect: Incompatible senderreceiver arguments ; #include QPushButton> #include QWidget> #include QLineEdit> ; #include

signal and slot QObject::connect: Incompatible senderreceiver arguments ; #include QPushButton> #include QWidget> #include QLineEdit> ; #include