Resolution of screenshot is low in qtbrowser

  • Hi,
    I am using the following code to take screenshots from qtbrowser.But resolution of the image captured is low when compared to the orginal image.
    @void MainWindow::saveFrame(QWebFrame *frame)
    QImage image(frame->contentsSize(), QImage::Format_ARGB32_Premultiplied);

    QPainter painter(&image);
    painter.setRenderHint(QPainter::Antialiasing, true);
    painter.setRenderHint(QPainter::TextAntialiasing, true);
    painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
    what is the reason behind this

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