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I am visualizing an incremental algorithm and at each step in the algorithm I want to update the GUI, pause for a couple of seconds, then continue on to the next step of the algorithm (and repeat).
What is the prefered method of doing this?
The right way to do this is to use a QTimer (either instantiate a QTimer object and call start() on it, or just call QTimer::singleShot()). Update your GUI in the slot connected to the QTimer’s timeout() signal.