Qt signals and slots for newbies

pureVirtualCall false positive with Qt signals and slots qt connect signal slot Currently, I use C++ with QT a lot And I quite appreciate the SignalSlots m echanism Because it is really convenient to connect different qt signal and slot To make a connectionn, press the left mouse button and drag the cursor towards the object you want to connect it to As you do this, a line will extend from the

qt slot It's important to ensure that the object being sent is not destroyed before the connected slot is invoked Similarly, the reception of arguments