Qt multiple defenition of signal - c++ - Stack Overflow на русском

Signals and Slots Across Threads · Auto Connection If the signal is emitted in the thread which the receiving object has affinity then the behavior is

Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism

signal slot qt As a workaround, you can manually connect the signal and slot in your C++ code like I mentioned in this comment in the

signal and slot arguments are not compatible Signals and SlotsHow to connect predefined Signals with User defined Slots(Qt C++