How to read QProcess output to QString?

Question

I have a code that uses QProcess like this :

int main(int argc, char *argv[])
{
    int status=0;
    QProcess pingProcess;
    QString ba;
    QString exec = "snmpget";
    QStringList params;

    params << "-v"
           << "2c"
           << "-c"
           << "public"
           << "10.18.32.52"
           << ".1.3.6.1.4.1.30966.1.2.1.1.1.5.10";

    status=pingProcess.execute(exec, params);
    
    pingProcess.close();
}

This outputs the following :

SNMPv2-SMI::enterprises.30966.1.2.1.1.1.5.10 = STRING: "0.1"

I want to take(read) this output as QString. I searched for this and I can't find the solution.

Thanks in advance.

Answer 1

Did you try QByteArray QProcess::readAllStandardOutput() docs - here

QString can be instantiated from QByteArray:

QString output(pingProcess.readAllStandardOutput());

As others mentioned, and I join to them, you should not use execute method and replace it with:

pingProcess.start(exec, params);
pingProcess.waitForFinished(); // sets current thread to sleep and waits for pingProcess end
QString output(pingProcess.readAllStandardOutput());