// Special case - convert a value to a QDBusVariant if the
    // interface wants a variant
    for (int i = 0; i < args.count(); ++i) {
        if (types.at(i) == qMetaTypeId<QDBusVariant>())
            args[i] = qVariantFromValue(QDBusVariant(args.at(i)));
        // Insure uint is used if uint is required.
        if (types.at(i) == QMetaType::type("uint")) 
            args[i] = QVariant((uint) args.at(i).toUInt(0));
    }