QDomDocument doc;

if (!doc.setContent(&file, false, &errorStr, &errorLine,&errorColumn))
{
    std::cerr << "Error: Parse error at line " << errorLine << ", "
              << "column " << errorColumn << ": "
              << qPrintable(errorStr) << std::endl;
    return false;
}

QDomElement root = doc.documentElement();