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by hermitcrab
1957 days ago
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Yes, potentially, if that is how you program it. But typically you call QWidget::update() which repaints the widget next time through the event loop, if anything changes. Calling QWidget::update() several times will usually only call one repaint. One thing you have to watch out for it that programmatic changes can fire signals. If you don't want this you have to add QObject::blockSignals(true);...QObject::blockSignals(false); around your call. |
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