InterProcess::InterProcess(QObject *parent) : QProcess(parent)
{
    process = new QProcess(this);
    process->start(myChildApp);
    process->waitForStarted();
    process->setCurrentWriteChannel(QProcess::StandardOutput);
    process->write("Test");

    connect( process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(error(QProcess::ProcessError)) );
    connect( process, SIGNAL(readyReadStandardError()), this, SLOT(readyReadStandardError()) );
    connect( process, SIGNAL(readyReadStandardOutput()), this, SLOT(readyReadStandardOutput()) );

QByteArray InterProcess::read()
{
    QByteArray readBuffer = process->readAllStandardOutput();
    return readBuffer;
}

void InterProcess::error( QProcess::ProcessError error )
{
    qDebug() << "Error!";
    qDebug() << error;
}

void InterProcess::readyReadStandardError()
{
    qDebug() << "Ready to read error.";
    qDebug() << process->readAllStandardError();
}

void InterProcess::readyReadStandardOutput()
{
    qDebug() << "The output:";
    QByteArray readBuffer = process->readAllStandardOutput();
    qDebug() << readBuffer;
}

InterProcess::InterProcess(QObject *parent) : QProcess(parent)
{
    process = new QProcess();
    process->setCurrentReadChannel(QProcess::StandardOutput);

    connect( process, SIGNAL(readyRead()), this, SLOT(readyReadStandardOutput()));
    connect( process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(error(QProcess::ProcessError)) );
    connect( process, SIGNAL(readyReadStandardError()), this, SLOT(readyReadStandardError()) );
    connect( process, SIGNAL(readyReadStandardOutput()), this, SLOT(readyReadStandardOutput()) );

    process->waitForReadyRead(5000);
}

void InterProcess::readyReadStandardError()
{
    qDebug() << "Ready to read error.";
    qDebug() << process->readAllStandardError();
    setText("REady error");
}

void InterProcess::readyReadStandardOutput()
{
    setMessage("2");
    qDebug() << "The output:";
    QByteArray readBuffer = process->readAllStandardOutput();
    qDebug() << readBuffer;
}
void InterProcess::error( QProcess::ProcessError error )
{
    qDebug() << "Error!";
    qDebug() << error;
    setText(QString(error));
}