Wait for key before exit in console app

Hello,
I've simple console application and cannot find solution how to wait for some key before exit from it. It's simple with getchar() or std::cin.ignore, but I want to do it with Qt, because for console communication I already use it:

Code:

---

int main() {
    QTextStream cout(stdout);
    QTextStream cin(stdin);
// ...
    cout << "Press <ENTER> to exit." << endl;
    forever {
        QString Line = cin.readLine();
        if (!Line.isNull()) {
            break;
        }
    }
    return 0;
}

---

Code inside forever was taken from stackoverflow, but doesn't work for me. Qt 4.7.3
Do you know some other solutions?

QSocketNotifier opened on stdin and an event loop to keep your program running until there is something to read in the descriptor monitored by the notifier.

Nice idea, but I think overhead of another class and event loop is too much just only to wait for key press. I thought about something simpe. It seems in console it's better to stay with std:: ...
Thanks anyway!

If you want simple then you have getchar()/getch() :)

well, getch is non standard and not always available

getchar() is standard.