Russian Qt Forum

    manager = new QNetworkAccessManager(this);
    connect(manager, SIGNAL(finished(QNetworkReply*)),
            SLOT(downloadFinished(QNetworkReply*)));

void MyDownloader::doDownload(const QString &path)
{
    QUrl url = QUrl(path);
    url.setScheme("http");
    QNetworkRequest request(url);
    QNetworkReply *reply = manager->get(request);
}

void MyDownloader::downloadFinished(QNetworkReply *reply)
{
    qDebug() << "trololo";
}

QNetworkReply *reply = manager.get(request);
qDebug() << reply->url();

connect(&manager, SIGNAL(finished(QNetworkReply*)),
            SLOT(downloadFinished(QNetworkReply*)));
connect(reply, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(sslErrors(QList<QSslError>)));
connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(testSlot(QNetworkReply::NetworkError)));

    QUrl url = QUrl::fromEncoded(path.toLocal8Bit());
    QNetworkAccessManager m;
    QNetworkReply * reply = m.get( QNetworkRequest( url ) );
    QEventLoop loop;
    connect( reply, SIGNAL(finished()), &loop, SLOT(quit()) );
    loop.exec();
    QString _filepath = "/tmp/3.png";
    QString filepath(_filepath);

    if (QFile::exists(filepath))
    {
        return filepath;
    }

    qDebug() << "filepath" << filepath;
    if ( reply->error() == QNetworkReply::NoError )
    {
      QFile image( filepath );
      image.open(QIODevice::WriteOnly);
      image.write( reply->readAll() );
      image.close();
    }
    else
    {
    }
    return filepath;

    QCoreApplication app(argc, argv);

    Downloader manager;
    manager.setParameters(1, 1, 1);
    QTimer::singleShot(0, &manager, SLOT(execute()));

    app.exec();

Downloader manager;
manager.setParameters(cur_zoom, separation-slice_num-1, stack_num);
QTimer::singleShot(0, &manager, SLOT(execute()));