ohh sure - but i fixed it already - this i shouldn't do of course. But it doesn't work anyway :-?

tcpsocket.cpp

Qt Code: 
  1. CTcpSocket::CTcpSocket(int socketDescriptor, QObject *parent)
  2. : QObject(parent)
  3. , m_socketDescriptor(socketDescriptor)
  4. {
  5. 	m_tcpSocket = new QTcpSocket();
  6.  
  7. 	if (!m_tcpSocket->setSocketDescriptor(m_socketDescriptor)) {
  8. 		qDebug() << m_tcpSocket->error();
  9. 		return;
  10. 	}
  11.  
  12. 	connect(m_tcpSocket, SIGNAL(readyRead()), SLOT(readData()));
  13. }
  14.  
  15.  
  16. void CTcpSocket::readData()
  17. {
  18. 	//ToDo Implement reading Data
  19. 	qDebug() << "try to read";
  20. 	//m_tcpSocket->waitForReadyRead(10000);
  21. }
  22.  
  23.  
  24. void CTcpSocket::writeData(QString txt)
  25. {
  26. 	qDebug() << "try to write";
  27.  
  28.     QByteArray block;
  29.     QDataStream out(&block, QIODevice::WriteOnly);
  30.     out.setVersion(QDataStream::Qt_4_0);
  31.     out << (quint16)0;
  32.     out << txt;
  33.     out.device()->seek(0);
  34.     out << (quint16)(block.size() - sizeof(quint16));
  35.  
  36.     m_tcpSocket->write(block);
  37.  
  38.     m_tcpSocket->waitForBytesWritten(10000);
  39. }
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