private void ProcessCancelTransaction(object state)
        {
            string status = EgateAPI.egGetOpStatus(_current.ID, true).GetString();

            _cancel = (status[0] == EgateAPI.StatusResult) ? CancelState.Completed : CancelState.None;
            OnMessage(String.Format("Транзакция отменена : {0}", _cancel), false);

            if (_cancel == CancelState.Completed)
            {
                Gazprom.TransactionCancelled++;
            }
        }
        private void ProcessTransaction(object sender, ElapsedEventArgs e)
        {
            string status = EgateAPI.egGetOpStatus(_current.ID, false).GetString();

            if (status[0] == EgateAPI.StatusResult)
            {
                _timer.Stop();
                OnMessage(String.Format("Запрос обработан : {0}", status.Substring(1)), false);

                AuthResponse response = null;
                try
                {
                    byte[] ba;
                    string result = EgateAPI.egGetAuthResult(_current.ID).GetString(out ba);
                    if (IsValidResult(result))
                    {
                        _lastTransactionResult = (_cancel == CancelState.Completed) ? TransactionResult.Cancelled : TransactionResult.OK;
                    }
                    else
                    {
                        _lastTransactionResult = TransactionResult.Error;
                        OnError(_current);
                    }

                    response = AuthResponse.Parse(result, ba);
                }
                catch (Exception x)
                {
                    OnMessage(x.Message, true);
                }
                finally
                {
                    OnTransactionCompleted(_lastTransactionResult, response);
                    _state = EquipmentState.CardTaken;
                    OnStateChanged(_state, status.Substring(1));
                }
            }
            else if (status[0] == EgateAPI.StatusBusy)
            {
                EquipmentState s = _state;
                switch (status[1])
                {
                case EgateAPI.StatusWaitCard:
                    //if (_state == EquipmentState.Started)
                    s = EquipmentState.WaitingForCard;
                    break;

                case EgateAPI.StatusCardEntered:
                    //if (_state == EquipmentState.WaitingForCard)
                    s = EquipmentState.CardInserted;
                    break;

                case EgateAPI.StatusPinEntered:
                    if (_state == EquipmentState.CardInserted)
                    {
                        s = EquipmentState.PinEntered;
                    }
                    break;

                case EgateAPI.StatusAuthCompleted:
                    if ((_state != EquipmentState.Started) && (_state != EquipmentState.WaitingForCard))
                    {
                        s = EquipmentState.AuthCompleted;
                    }
                    break;

                default:
                    s = _state;
                    break;
                }

                if (_state != s)
                {
                    _state = s;
                    OnStateChanged(_state, status.Substring(2));
                }
            }
        }