SignalSlot Communication

signal and slot arguments are not compatible   Dan signal and slot qt

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

Since the signatures are compatible, the QObject::connect: No such slot as RxMock::rxsignal() If I remove Q_OBJECT in class MockRx, I get: No such slot as QWidget::rxsignal() I also tried to

the godfather slot Signals and slots can take any number of arguments of any type They are completely typesafe: no more callback core dumps! All classes that inherit from QObject error: static assertion failed: Signal and slot arguments are not compatible 错误原因： 信号和插槽参数不兼容。 通俗的说，就是信号用的一种