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Editorial Team
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Asked: 2026-05-24T04:33:44+00:00

Say I wanted to have a worker thread that has slots for signals emmited

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Say I wanted to have a worker thread that has slots for signals emmited from the main application thread.

  1. How would the “::run()” method of that worker thread look? obviously I need some kind of loop or the thread will terminate immediately. I want it to stick around so it can process the incoming slots. How would that loop look like? Something equivalent to sleep and pump messages? pump how?

  2. Do I need to “MoveToThread()” all the objects that’ll pass to the thread’s slots so that the processing of the slot is done in the context of the worker thread?

Thank you.

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1 Answer

  1. Editorial Team

    Did some more digging.
    The default implementation of QThread::run calls “exec” which is the message loop. So no extra work needed there. In the constructor of my QThread I add this:

    this->start();
QObject::moveToThread(this);

    As a result, my thread starts upon construction, and all signals outside the thread aimed at thread slots are executed in the context of my thread.

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