Question

i’m trying to get computer’s state in my LAN…
thought about using QTcpSocket but it’s not realy effective since port also should be inserted as:

socket->connectToHost("hostName", portNumber);
if (socket->waitForConnected(1000))
     qDebug("Connected!");

can anyone demonstare me a better way to check if computer is responding ?

Answer 1

ping

int exitCode = QProcess::execute("ping", QStringList() << "-c1" << "hostname");
if (0 == exitCode) {
    // it's alive
} else {
    // it's dead
}

Arguments may vary. For example, I believe it would be ping -n 1 "hostname" on Windows. The example should work on most non-Windows versions.