Emitting a custom signal using lambdas

Connect signal to slot with derived parameter qt connect signal to slot with parameter At some point I had the idea to create one signalslot pair with a std::functionvoid()> parameter to do that, but it's even easier Since Qt qt signal slot example The signal must be a function declared as a signal in the header The slot function can be any function or functor that can be connected to the signal A

qtech slot To send signal across threads we have to use the parameter Without this parameter the code will be executed in the same