- QTcpSocket *socket = server->nextPendingConnection();
- connect(socket, SIGNAL(readyRead()), this, SLOT(respond()));
- connect(socket, SIGNAL(disconnected()), socket, SLOT(deleteLater()));
+ QTcpSocket* socket = server->nextPendingConnection();
+ connect(socket, &QIODevice::readyRead, this, &IdentServer::respond);
+ connect(socket, &QAbstractSocket::disconnected, socket, &QObject::deleteLater);