Game Programming using Qt 5 Beginner's Guide - Second Edition

Time for action – Reacting on a new pending connection

As soon as a client tries to connect to the server, the newConnection() slot will be called:

void TcpServer::newConnection()
{
    while (m_server->hasPendingConnections()) {
        QTcpSocket *socket = m_server->nextPendingConnection();
        m_clients << socket;
        ui->disconnectClients->setEnabled(true);
        connect(socket, &QTcpSocket::disconnected,
                this, &TcpServer::removeConnection);
        connect(socket, &QTcpSocket::readyRead,
                this, &TcpServer::readyRead);
        ui->log->appendPlainText(tr("* New connection: %1, port %2\n")
                                 .arg(socket->peerAddress().toString())
                                 .arg(socket->peerPort()));
    }
}