Qt Qprocess Output Cmd %hostname%

[umarzuki 78]

code ni tak berjaya output "echo %hostname%" yang sepatutnya bagi nama computer yang kita set masa install windows

 

    QString program = "cmd.exe";
    QStringList arguments;
    arguments << "-v";

    QProcess *myProcess = new QProcess();
    //myProcess->start(program, arguments);
    myProcess->start(program);


    if (myProcess->waitForStarted(1000) == false)
    qDebug() << "Error starting external program";

    else
    qDebug() << "external program running";

    myProcess->waitForReadyRead(100);
    myProcess->waitForFinished(100);
    qDebug() << "read output" << myProcess->readAllStandardOutput();

    myProcess->write("echo \%HOSTNAME\% \n");
    myProcess->closeWriteChannel();
    myProcess->waitForBytesWritten(100);
    myProcess->waitForReadyRead(100);
    myProcess->waitForFinished(100);
    qDebug() << "read output" << myProcess->readAllStandardOutput();

output dapat "%HOSTNAME%"

 

mungkin ada kaitan dengan windows punya environment variable yang boleh dapat dari command SET