How does HistoryDealGetInteger() in backtest?

[MoukemasSu]

If you can help me resolve this situation, please let me know.

I was thinking about the process after StopLoss in OnTradeTransaction(). I wrote the following code.

When I backtested with this code, it did not work as expected. The reason was that HistoryDealGetInteger() only returned 0 no matter what property I specified.

So I used GeLastError() to check the error code and it returned ErrorCode4755. This is the error code for a missing transaction history.

However, in the MT5 log, there is a log where StopLoss is triggered and a deal ticket is issued, and the OnTraderTransaction() instruction is executed, so there should be transaction history.

1) Does HistoryDealGetInteger() not work during backtesting?

2) I would like to know if there is a solution to this problem.

void OnTradeTransaction(const MqlTradeTransaction& trans, const MqlTradeRequest& request, const MqlTradeResult& result)
  {

//---
   if (trans.type == TRADE_TRANSACTION_DEAL_ADD)
     {
      ulong deal_ticket = trans.deal;
      if (HistoryDealGetInteger(deal_ticket, DEAL_REASON) == DEAL_REASON_SL)
        {
         //-----Here Process
        }
     }
  }

2) I would like to know if there is a solution to this problem.

[Alain Verleyen]

You need to select the history before dealing with it using HistoryDealGetIntege() or similar functions.

[MoukemasSu]

Alain Verleyen #:

You need to select the history before dealing with it using HistoryDealGetIntege() or similar functions.

Thank you for helping me.

I tried to use HistorySelect(), and it worked!

But HistoryOrderSelect(ulong ticket) didn't work.:(

Anyway, my code works well. Thank you for your information.:)

[Stanislav Korotky]

MoukemasSu #:
HistoryOrderSelect

Probably you mixed up deals and orders. Also please note, that orders can be active (not in the history yet), then you need to call OrderSelect instead.