void QWindowsStyle::timerEvent(QTimerEvent *event)
{
#ifndef QT_NO_PROGRESSBAR
    Q_D(QWindowsStyle);
    if (event->timerId() == d->animateTimer) {
        Q_ASSERT(d->animationFps> 0);
        d->animateStep = d->startTime.elapsed() / (1000 / d->animationFps);
        foreach (QProgressBar *bar, d->bars) {
            if ((bar->minimum() == 0 && bar->maximum() == 0))
                bar->update();
        }
    }
#endif // QT_NO_PROGRESSBAR
    event->ignore();
}