- connect(socket, SIGNAL(stateChanged(QAbstractSocket::SocketState)), SLOT(onSocketStateChanged(QAbstractSocket::SocketState)));
- connect(socket, SIGNAL(readyRead()), SLOT(onReadyRead()));
- connect(socket, SIGNAL(connected()), SLOT(onSocketConnected()));
+ connect(socket, &QAbstractSocket::stateChanged, this, &ClientAuthHandler::onSocketStateChanged);
+ connect(socket, &QIODevice::readyRead, this, &ClientAuthHandler::onReadyRead);
+ connect(socket, &QAbstractSocket::connected, this, &ClientAuthHandler::onSocketConnected);