save_bars.script.02.mq4

save_bars.script.02.mq4

//+------------------------------------------------------------------+
//|                                             save_bars.script.mq4 |
//|                        Copyright 2022, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2022, MetaQuotes Software Corp."
#property link "https://www.mql5.com"
#property version "1.00"
#property strict

int sample_size = 6;          // NOTE: exporting 6 bars only.
string filename = "bars.csv"; // NOTE: we are passing this into the DLL

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
{
  // Get the filepath to this script
  string ex4_filepath = MQLInfoString(MQL_PROGRAM_PATH);

  string ohlcvt = "";
  for (int i = sample_size - 1; i >= 0; i--)
  {
    // Delimit between values with '_'
    string str =
      DoubleToString(Open[i]) + "_" +
      DoubleToString(High[i]) + "_" +
      DoubleToString(Low[i]) + "_" +
      DoubleToString(Close[i]) + "_" +
      IntegerToString(Volume[i]) + "_" +
      IntegerToString(Time[i]);
    if (ohlcvt == "")
    {
      ohlcvt = str;
    }
    else
    {
      ohlcvt = ohlcvt + " " + str;
    }
  }

  // convert filepath to char-array
  uchar ex4_filepath_arr[];
  StringToCharArray(ex4_filepath, ex4_filepath_arr);
  
  // convert export filename to char-array
  uchar filepath_arr[];
  StringToCharArray(filename, filepath_arr);
  
  // convert collected data to char-array
  uchar ohlcvt_arr[];
  StringToCharArray(ohlcvt, ohlcvt_arr);
  
  // Call a function called 'export_ohlcvt'
  export_ohlcvt(ex4_filepath_arr, filepath_arr, ohlcvt_arr);
}
//+------------------------------------------------------------------+