class MLTcpServer : public QTcpServer{
    Q_OBJECT
public:
    MLTcpServer(QObject *parent = 0);
    ~MLTcpServer();
signals:
    void fucking_connection(int socketDescriptor);
protected:
    void incomingConnection(int socketDescriptor);    
};

MLTcpServer::MLTcpServer(QObject *parent)
        :QTcpServer(parent){
}

MLTcpServer::~MLTcpServer(){

}

 void MLTcpServer::incomingConnection(int socketDescriptor) {
     emit fucking_connection(socketDescriptor);
}

    virtual ~MLTcpServer();

class My
{
};

class My
{
     Q_OBJECT
};