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client::client(QObject *parent) :
    QObject(parent)
{
    tcp = new QTcpSocket(this);
    tcp->connectToHost("127.0.0.1",8888);
    connect(tcp,SIGNAL(connected()),SLOT(conn()));
    connect(tcp,SIGNAL(error(QAbstractSocket::SocketError)),SLOT(err(QAbstractSocket::SocketError)));
    connect(tcp,SIGNAL(readyRead()),SLOT(read()));
}

void client::read()
{
    QByteArray bytes;
    QImage pixmap;

    bytes = tcp->readAll();
    QBuffer buffer(&bytes);
    buffer.open(QIODevice::WriteOnly);
    pixmap.load(bytes);
    pixmap.save("gg.jpg");


}