process readLine

cdcc0606

I have use de a qprocess to start a soft "discover.exe", however i cannot read lines with the process. it works before, but now it doesn't work any more.
Here is part of my code

   QString exePath;
   exePath = ("discover.exe");

   addpProcess->start(exePath,QIODevice::ReadWrite);

   if( !addpProcess->waitForStarted() ) {
       allOSB_On_Network.insert(0,"impossibletostart");
       return allOSB_On_Network;
   }
   else {

           QCoreApplication::processEvents();
           addpProcess->waitForReadyRead(300);

           dataReceive=addpProcess->readLine();
            .....
          }

So in my programe, i can not read anything in the parameter dataReceive.It's always empty.
But if i use directly the function with IP I know i can communicate with the board.

    tcpSocket->connectToHost(IP,2001,QIODevice::ReadWrite);
    tcpSocket->write(datagram);
    tcpSocket->waitForBytesWritten(300);

    tcpSocket->waitForReadyRead(300);
    QByteArray temp = tcpSocket->read(1);

Anyone knows why? the process cannot read anything?

mrjj

it works before, but now it doesn't work any more.

So what did u change from there till now?

Anyway, how does "discover.exe" get the IP?