Yardım auto_ptr ve pMsg hatası

long CHARACTER::GetWon() const
{
    std::auto_ptr <SQLMsg> pMsg(DBManager::instance().DirectQuery("SELECT umutkcheque FROM player.player WHERE id = '%d';", GetPlayerID()));
    if (pMsg->Get()->uiNumRows == 0)
        return 0;

    MYSQL_ROW row = mysql_fetch_row(pMsg->Get()->pSQLResult);
    DWORD won = 0;
    str_to_number(won, row[0]);
    return won;
}