Hi

I have MainWindow object instantiated(On Stack) in main.cpp and also 2 threads for 2 cameras(realtime) putting their images on TextLabel widgets(which are in MainWindow).

I access text labels widgets from the threads by passing pointer of MainWindow to those threads(in constructor).

Ex: mw->ui->label_2->setPixMap(...images...);

I have no problem displaying while one thread is active. But when two threads are created , The application crashes.

Hope someone helps.

what is the best GUI architecture for displaying from multiple cameras at a time?

Regards