QPageSetupDialog does not open if system does not have printers

// qpagesetupdialog.cpp

void QPageSetupDialogPrivate::setPrinter(QPrinter *newPrinter)
{
 // ...
    if (printer->outputFormat() != QPrinter::NativeFormat)
        qWarning("QPageSetupDialog: Cannot be used on non-native printers");
}

// qprinter.cpp
void QPrinter::setOutputFormat(OutputFormat format)
{
    Q_D(QPrinter);

    if (d->outputFormat == format)
        return;

    if (format == QPrinter::NativeFormat) {
        QPrinterInfo printerToUse = d->findValidPrinter();
        if (!printerToUse.isNull())
            d->changeEngines(format, printerToUse);
    } else {
        d->changeEngines(format, QPrinterInfo());
    }
}