QProcess - read from stdout lively

[boudie]

You are doing it wrong.
Try something like this:

MainWindow::MainWindow(QWidget *parent, Qt::WFlags flags)
    : QMainWindow(parent, flags)
{
    process = new QProcess(this);  // create on the heap, so it doesn't go out of scope
    connect (process, SIGNAL(readyReadStandardOutput()), this, SLOT(processOutput()));  // connect process signals with your code
    connect (process, SIGNAL(readyReadStandardError()), this, SLOT(processOutput()));  // same here
    process->start(program, args);  // start the process
}
 
 
// this gets called whenever the process has something to say...
void MainWindow::processOutput()
{
    qDebug() << process->readAllStandardOutput();  // read normal output
    qDebug() << process->readAllStandardError();  // read error channel
}

MainWindow::MainWindow(QWidget *parent, Qt::WFlags flags)
    : QMainWindow(parent, flags)
{
    process = new QProcess(this);  // create on the heap, so it doesn't go out of scope
    connect (process, SIGNAL(readyReadStandardOutput()), this, SLOT(processOutput()));  // connect process signals with your code
    connect (process, SIGNAL(readyReadStandardError()), this, SLOT(processOutput()));  // same here
    process->start(program, args);  // start the process
}


// this gets called whenever the process has something to say...
void MainWindow::processOutput()
{
    qDebug() << process->readAllStandardOutput();  // read normal output
    qDebug() << process->readAllStandardError();  // read error channel
}

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