MQL5Book/Scripts/p5/SeriesRates.mq5

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//|                                                  SeriesRates.mq5 |
//|                                  Copyright 2021, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#include "..\..\Include\PRTF.mqh"

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//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
{
   const int N = 10;
   MqlRates rates[];
   
   // request and display complete N bars as MqlRates array
   PRTF(CopyRates("EURUSD", PERIOD_D1, D'2021.10.01', N, rates));
   ArrayPrint(rates);
   
   // now request OHLC prices separately
   double open[], high[], low[], close[];
   PRTF(CopyOpen("EURUSD", PERIOD_D1, D'2021.10.01', N, open));
   PRTF(CopyHigh("EURUSD", PERIOD_D1, D'2021.10.01', N, high));
   PRTF(CopyLow("EURUSD", PERIOD_D1, D'2021.10.01', N, low));
   PRTF(CopyClose("EURUSD", PERIOD_D1, D'2021.10.01', N, close));
   
   // compare prices received by different methods
   for(int i = 0; i < N; ++i)
   {
      if(rates[i].open != open[i]
      || rates[i].high != high[i]
      || rates[i].low != low[i]
      || rates[i].close != close[i])
      {
         // this should not happen
         Print("Data mismatch at ", i);
         return;
      }
   }
   
   Print("Copied OHLC arrays match MqlRates array");
   
   /*
      output example
      
      CopyRates(EURUSD,PERIOD_D1,D'2021.10.01',N,rates)=10 / ok
                       [time]  [open]  [high]   [low] [close] [tick_volume] [spread] [real_volume]
      [0] 2021.09.20 00:00:00 1.17272 1.17363 1.17004 1.17257         58444        0             0
      [1] 2021.09.21 00:00:00 1.17248 1.17486 1.17149 1.17252         58514        0             0
      [2] 2021.09.22 00:00:00 1.17240 1.17555 1.16843 1.16866         72571        0             0
      [3] 2021.09.23 00:00:00 1.16860 1.17501 1.16835 1.17381         68536        0             0
      [4] 2021.09.24 00:00:00 1.17379 1.17476 1.17007 1.17206         51401        0             0
      [5] 2021.09.27 00:00:00 1.17255 1.17255 1.16848 1.16952         57807        0             0
      [6] 2021.09.28 00:00:00 1.16940 1.17032 1.16682 1.16826         64793        0             0
      [7] 2021.09.29 00:00:00 1.16825 1.16901 1.15894 1.15969         68964        0             0
      [8] 2021.09.30 00:00:00 1.15963 1.16097 1.15626 1.15769         68517        0             0
      [9] 2021.10.01 00:00:00 1.15740 1.16075 1.15630 1.15927         66777        0             0
      CopyOpen(EURUSD,PERIOD_D1,D'2021.10.01',N,open)=10 / ok
      CopyHigh(EURUSD,PERIOD_D1,D'2021.10.01',N,high)=10 / ok
      CopyLow(EURUSD,PERIOD_D1,D'2021.10.01',N,low)=10 / ok
      CopyClose(EURUSD,PERIOD_D1,D'2021.10.01',N,close)=10 / ok
      Copied OHLC arrays match MqlRates array
   */
}
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