66 lines
2.7 KiB
MQL5
66 lines
2.7 KiB
MQL5
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//+------------------------------------------------------------------+
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//| TradeTransactionRelay.mq5 |
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//| Copyright 2022, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "2021, MetaQuotes Ltd."
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#property link "https://www.mql5.com"
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#property description "Intercept OnTradeTransaction events"
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" and expose most important MqlTradeResult fields"
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" in the indicator buffer addressable by request_id."
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#property indicator_chart_window
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#property indicator_buffers 1
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#property indicator_plots 1
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 DodgerBlue
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#include "..\..\Include\ConverterT.mqh"
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#define FIELD_NUM 6
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double Buffer[];
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Converter<ulong,double> cnv;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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void OnInit()
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{
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SetIndexBuffer(0, Buffer, INDICATOR_DATA);
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const int begin,
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const double &price[])
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{
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return rates_total;
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}
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//+------------------------------------------------------------------+
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//| Trade transactions handler |
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//+------------------------------------------------------------------+
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void OnTradeTransaction(const MqlTradeTransaction &transaction,
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const MqlTradeRequest &request,
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const MqlTradeResult &result)
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{
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if(transaction.type == TRADE_TRANSACTION_REQUEST)
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{
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ArraySetAsSeries(Buffer, true);
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// save FIELD_NUM result fields in successive elements of the buffer
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const int offset = (int)((result.request_id * FIELD_NUM)
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% (Bars(_Symbol, _Period) / FIELD_NUM * FIELD_NUM));
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Buffer[offset + 1] = result.retcode;
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Buffer[offset + 2] = cnv[result.deal];
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Buffer[offset + 3] = cnv[result.order];
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Buffer[offset + 4] = result.volume;
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Buffer[offset + 5] = result.price;
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Buffer[offset + 0] = result.request_id; // this assignment must go last! it's a trigger of the 'ready' state
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}
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}
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//+------------------------------------------------------------------+
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