How to connect signal and slot in different classes in Qt?

qt connect signal slot   Dan qt signal slot

Detailed Description Represents a handle to a signal-slot connection It can be used to check if the connection is valid and to

You can't pass parameters to signal when you connect Parameters are passed to the signal when the signal is emitted Same applies to slots: Currently, I use C++ with QT a lot And I quite appreciate the SignalSlots m echanism Because it is really convenient to connect different

delirium bet slot You can connect signal with another signal ; Every signal and slot can have unlimited count of connections with other  QObject :: connect (button, SIGNAL (clicked ()), label, SLOT (setText )); Here we have tried a signal-slot link The aim of