How Qt Signals & Slots Work

The signals and slots mechanism is type safe The signature of a signal must match the signature of the receiving slot

Does your code ever return to the Qt event loop? Thank you for the answer but I don´t understand you I put the breakpoint in the emit line, and

qt slot Back in your Qt program, that Qt signal gets emitted and then received by your Qt slot function, where you can safely do whatever Qt stuff you weren't allowed

qt signal and slot I have class A, which dynamically allocates an instance of class B when a method is called, and emits a signal which carries the instance of B