QwtPlot how to save/restore zoom settings

[Darent]

Thanks Uwe.
now using:

QRectF CGraph::zoomRect()
{
    const QwtScaleDiv &xs = this->axisScaleDiv( QwtPlot::xBottom);
    const QwtScaleDiv &ys = this->axisScaleDiv( QwtPlot::yLeft );
    return QRectF( xs.lowerBound(), ys.lowerBound(), xs.range(), ys.range() );
}
 
void CGraph::setZoomRect(const QRectF& r)
{
    this->setAxisScale(QwtPlot::xBottom, r.left(), r.right());
    this->setAxisScale(QwtPlot::yLeft, r.top(), r.bottom());
}

QRectF CGraph::zoomRect()
{
    const QwtScaleDiv &xs = this->axisScaleDiv( QwtPlot::xBottom);
    const QwtScaleDiv &ys = this->axisScaleDiv( QwtPlot::yLeft );
    return QRectF( xs.lowerBound(), ys.lowerBound(), xs.range(), ys.range() );
}

void CGraph::setZoomRect(const QRectF& r)
{
    this->setAxisScale(QwtPlot::xBottom, r.left(), r.right());
    this->setAxisScale(QwtPlot::yLeft, r.top(), r.bottom());
}

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