Pending Order as Partial Take Profit on Hedging Mode?

[omadruga]

Hi all, 

Is it possible to do this?

I'm opening a position with a order like this. 10 lots with stop loss and no take profit.

CTrade t_buy;
t_buy.OrderOpen(_Symbol, ORDER_TYPE_BUY_LIMIT, 10, 0, p, sl, 0, ORDER_TIME_DAY);

Now when the order gets in (creates a position) I want to have 5 partial take profits each with 2 lots. I've read on the manuals that you can do this by informing the position ticket on the request. So now I'm doing this:

ResetLastError();
   MqlTick             tick;    SymbolInfoTick(_Symbol,tick);
   MqlTradeRequest     request={0}; ZeroMemory(request);
   MqlTradeResult      result={0};  ZeroMemory(result);
   MqlTradeCheckResult check;   ZeroMemory(check);

   request.action       = TRADE_ACTION_DEAL;
   request.symbol       = _Symbol;
   request.volume       = 2;
   request.type         = ORDER_TYPE_SELL_LIMIT;
   request.price        = takeProfit; // variable that I define earlier based on entry price
   request.type_filling = ORDER_FILLING_FOK;
   request.deviation    = 0;
   request.sl           = 0;
   request.tp           = 0;
   request.magic        = Magic_Number;
   request.position     = t_buy.RequestPosition(); 

t_buy.OrderSend(request, result);

But I'm getting error 10013 with the message

2019.01.10 21:50:11.251 2018.09.03 09:45:40   CTrade::OrderSend: exchange sell limit 2.00 position #2 WIN$N [invalid request].

Can someone help me please?

[fxsaber]

request.position     = 0; // t_buy.RequestPosition();

https://www.mql5.com/en/docs/constants/tradingconstants/enum_trade_request_actions#trade_action_close_by

[Martin Bittencourt]

fxsaber:

https://www.mql5.com/en/docs/constants/tradingconstants/enum_trade_request_actions#trade_action_close_by

Hi,

I wasn't able to understand your reply... AFAIK the OP wanted to set a pending order opposite to the opened position to sell part of its volume as a partial take profit strategy, all this in hedging mode. But your reply linked to a way of using MqlTradeRequest, with TRADE_ACTION_CLOSE_BY, that is supposed to be used to close the position entirely - even the example of the provided link don't consider the value informed in .volume.