How to use QTProcess with ping command?

NTCYP

Hi,

I am trying to use QT process as;

// Create QProcess object
proc = new QProcess();
proc->start("ping", QStringList() << "-c 10" << QString(www.google.com));

And I am gettig error as;

ping: Invalid number '10'

Any help please,

Kind Regards

NTCYP

Ok. I found it.

I shouldn't use "-c 10"... It was simply as;

QString m_sHostName = "www.google.com";

proc = new QProcess();
proc->start("ping", QStringList() << QString(m_sHostName));

Kind Regards,

SGaist

Hi,

The problem comes from how you prepare the argument list. You should use QStringList() << "-c" << "10" << "www.google.com"

NTCYP

@SGaist Thank you, it is working nicely... :)

NTCYP

Here is a complete code. Hope helps someone...

// WIFI PING TEST BUTTON 
void DialogWIFI::on_PushButtonPing_clicked()
{
    QString m_sHostName = "www.google.com";

    // Clear text
    ui->TextEditResult->clear();

    // Create string command and argument
    m_sHostName = ui->LineEditHostName->text();

    ui->TextEditResult->append(m_sHostName);

    // Create QProcess object
    proc = new QProcess();
    proc->start("ping", QStringList() << "-c" << "3" << QString(m_sHostName));
    QCoreApplication::processEvents();

    // Show output
    connect(proc, SIGNAL(readyReadStandardOutput()), this, SLOT(rightMessage()));
    connect(proc, SIGNAL(readyReadStandardError()), this, SLOT(wrongMessage()));
}


// Show right message
void DialogWIFI::rightMessage()
{
    QByteArray strdata = proc->readAllStandardOutput();
    strdata = strdata.simplified();
    strdata = strdata.trimmed();

    ui->TextEditResult->setTextColor(Qt::black);
    ui->TextEditResult->append(strdata);
    ui->TextEditResult->append("<br>");

}


// Show wrong message
void DialogWIFI::wrongMessage()
{
    QByteArray strdata = proc->readAllStandardError();
    ui->TextEditResult->setTextColor(Qt::red);
    ui->TextEditResult->append(strdata);
}