how to catch when an order closes

Trading is done by sending orders to open positions using the OrderSend() function, as well as to place, modify or delete pending orders. Each trade order refers to the type of the requested operation. Trading operations are described in the ENUM_TRADE_REQUEST_ACTIONS enumeration...

Marco vd Heijden 2018.06.29 19:45 #3

When PositionsTotal() returns one less.

Code2219 or 2319 2018.06.30 09:27 #4

for handling positions you can use this : (fast write up)

void OnTrade()
{
    static int previous_open_positions = 0;
    int current_open_positions = PositionsTotal();
    if(current_open_positions != previous_open_positions)
    {
        if(current_open_positions < previous_open_positions)    // A position just got closed
        {
                previous_open_positions = current_open_positions;
                // some operations on last closed position. (or others in history.)
        }
        else                                                    // A position just got opened
        {
                previous_open_positions = current_open_positions;
                // some operations on last opened position. (or all open ones.)
        }
    }
}

OnTrade event triggers on modifies, and orders execution/cancelling too. so the codes filters the calls, to only watch for a change in position lists. tweak that if u want

opening a new trade how to create a Closing Position via FIFO

Enrique Dangeroux 2018.06.30 16:09 #5

+------------------------------------------------------------------+
void OnTradeTransaction (const MqlTradeTransaction &trans,
                         const MqlTradeRequest &request,
                         const MqlTradeResult &result)
  {
  
//--- get transaction type as enumeration value 
   ENUM_TRADE_TRANSACTION_TYPE type=trans.type;
   
//--- if transaction is result of addition of the transaction in history
   if(type==TRADE_TRANSACTION_DEAL_ADD)
     {
       long     deal_ticket      = 0;
       long     deal_order       = 0;
       long     deal_time        = 0;
       long     deal_time_msc    = 0;
       long     deal_type        = -1;
       long     deal_entry       = -1;
       long     deal_magic       = 0;
       long     deal_reason      = -1;
       long     deal_position_id = 0;
       double   deal_volume      = 0.0;
       double   deal_price       = 0.0;
       double   deal_commission  = 0.0;
       double   deal_swap        = 0.0;
       double   deal_profit      = 0.0;
       string   deal_symbol      = "";
       string   deal_comment     = "";
       string   deal_external_id = "";
       
       if(HistoryDealSelect(trans.deal))
         {
          deal_ticket            = HistoryDealGetInteger(trans.deal, DEAL_TICKET);
          deal_order             = HistoryDealGetInteger(trans.deal, DEAL_ORDER);
          deal_time              = HistoryDealGetInteger(trans.deal, DEAL_TIME);
          deal_time_msc          = HistoryDealGetInteger(trans.deal, DEAL_TIME_MSC);
          deal_type              = HistoryDealGetInteger(trans.deal, DEAL_TYPE);
          deal_entry             = HistoryDealGetInteger(trans.deal, DEAL_ENTRY);
          deal_magic             = HistoryDealGetInteger(trans.deal, DEAL_MAGIC);
          deal_reason            = HistoryDealGetInteger(trans.deal, DEAL_REASON);
          deal_position_id       = HistoryDealGetInteger(trans.deal, DEAL_POSITION_ID);
  
          deal_volume            = HistoryDealGetDouble(trans.deal, DEAL_VOLUME);
          deal_price             = HistoryDealGetDouble(trans.deal, DEAL_PRICE);
          deal_commission        = HistoryDealGetDouble(trans.deal, DEAL_COMMISSION);
          deal_swap              = HistoryDealGetDouble(trans.deal, DEAL_SWAP);
          deal_profit            = HistoryDealGetDouble(trans.deal, DEAL_PROFIT);
  
          deal_symbol            = HistoryDealGetString(trans.deal, DEAL_SYMBOL);
          deal_comment           = HistoryDealGetString(trans.deal, DEAL_COMMENT);
          deal_external_id       = HistoryDealGetString(trans.deal, DEAL_EXTERNAL_ID);
         }
       else
          return;
          
       if(deal_reason!=-1)
          //DebugBreak();

       if((deal_type==DEAL_TYPE_BUY || deal_type==DEAL_TYPE_SELL) && deal_magic==InpMagic)
         {


         }

       if(deal_symbol==_Symbol && deal_magic==InpMagic)
         {
   

         }

       etc

     }


     
  }