This must be the part that you want
void MyServer::StartServer()
{
thisIp = 2346;
if(!this->listen(QHostAddress::Any, thisIp))
{
qDebug() << "Could not start server.";
qDebug() << errorString();
}
else
{
qDebug() << "Listening at" << thisIp;
}
}
and here is the original. tutorial.
