[Qt-interest] Convert from a QPixmap into a QByteArray, and back

[Gabriele Kahlout]

Hello,

In the process of debugging I've found myself unable to assert the following
code:

 int main(int argc, char *argv[])

{

    QApplication a(argc, argv);

     const QPixmap screen =
QPixmap::grabWindow(QApplication::desktop()->winId());

    QByteArray *bytes = new QByteArray();

    QDataStream out(bytes, QIODevice::WriteOnly);

    out << screen;

     QPixmap* screen1 = new QPixmap();

    screen1->loadFromData(bytes->data());

     std::cout << screen1->save("7777.png", "PNG") << endl;

    std::cout << screen.save("6666.png", "PNG") << endl;

     return a.exec();

}


All I'm doing is trying to convert from a QPixmap into a QByteArray, and
back. Although the code is mostly verbatim from QPixmap and QDataStream, it
doens't work. Indeed screen1 fails to save into 7777.png.

Your help, fixing this code, is greatly appreciated.

-- 
Regards,
K. Gabriele

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