void SystemQueueListener::onMessage(QAMessage * msg) {
    QATextMessage *  t_msg;
    TCHAR    buffer[512];
    int      len;
    int      msg_type;

    t_msg = msg->castToTextMessage();
    if (t_msg != NULL) {
        t_msg->getIntProperty( MessageProperties::MSG_TYPE, &msg_type );
        if (msg_type == MessageType::NETWORK_STATUS_NOTIFICATION) {
            // get network names using MessageProperties::NETWORK
            len = t_msg->getStringProperty(MessageProperties::NETWORK,buffer,sizeof(buffer));
        }
        // ...
    }
}