GeneralTradingSarl
99 lines
4.2 KiB
Plaintext
99 lines
4.2 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Demo_FileWriteInteger.mq5 |
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//| Copyright 2013, MetaQuotes Software Corp. |
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//| http://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2013, MetaQuotes Software Corp."
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#property link "http://www.mql5.com"
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#property version "1.00"
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//--- show the window of input parameters when launching the script
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#property script_show_inputs
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//--- parameters for receiving data from the terminal
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input string InpSymbolName="EURUSD"; // currency pair
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input ENUM_TIMEFRAMES InpSymbolPeriod=PERIOD_H1; // timeframe
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input datetime InpDateStart=D'2013.01.01 00:00'; // data copying start date
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//--- parameters for writing data to the file
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input string InpFileName="Trend.bin"; // file name
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input string InpDirectoryName="Data"; // directory name
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//+------------------------------------------------------------------+
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//| Script program start function |
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//+------------------------------------------------------------------+
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void OnStart()
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{
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datetime date_finish=TimeCurrent();
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double close_buff[];
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datetime time_buff[];
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int size;
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//--- reset the error value
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ResetLastError();
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//--- copy the close price for each bar
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if(CopyClose(InpSymbolName,InpSymbolPeriod,InpDateStart,date_finish,close_buff)==-1)
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{
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PrintFormat("Failed to copy the values of close prices. Error code = %d",GetLastError());
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return;
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}
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//--- copy the time for each bar
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if(CopyTime(InpSymbolName,InpSymbolPeriod,InpDateStart,date_finish,time_buff)==-1)
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{
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PrintFormat("Failed to copy time values. Error code = %d",GetLastError());
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return;
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}
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//--- receive the buffer size
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size=ArraySize(close_buff);
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//--- open the file for writing the values (if the file is absent, it will be created automatically)
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ResetLastError();
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int file_handle=FileOpen(InpDirectoryName+"//"+InpFileName,FILE_READ|FILE_WRITE|FILE_BIN);
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if(file_handle!=INVALID_HANDLE)
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{
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PrintFormat("%s file is available for writing",InpFileName);
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PrintFormat("File path: %s\\Files\\",TerminalInfoString(TERMINAL_DATA_PATH));
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//---
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int up_down=0; // trend flag
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int arr_size; // arr array size
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uchar arr[]; // uchar type array
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//--- write time values to the file
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for(int i=0;i<size-1;i++)
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{
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//--- compare close prices of the current and next bars
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if(close_buff[i]<=close_buff[i+1])
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{
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if(up_down!=1)
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{
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//--- write date value to the file using FileWriteInteger
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StringToCharArray(TimeToString(time_buff[i]),arr);
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arr_size=ArraySize(arr);
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//--- first, write the number of symbols in the array
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FileWriteInteger(file_handle,arr_size,INT_VALUE);
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//--- write the symbols
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for(int j=0;j<arr_size;j++)
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FileWriteInteger(file_handle,arr[j],CHAR_VALUE);
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//--- change the trend flag
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up_down=1;
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}
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}
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else
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{
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if(up_down!=-1)
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{
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//--- write the date value to the file using FileWriteInteger
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StringToCharArray(TimeToString(time_buff[i]),arr);
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arr_size=ArraySize(arr);
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//--- first, write the number of symbols in the array
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FileWriteInteger(file_handle,arr_size,INT_VALUE);
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//--- write the symbols
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for(int j=0;j<arr_size;j++)
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FileWriteInteger(file_handle,arr[j],CHAR_VALUE);
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//--- change the trend flag
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up_down=-1;
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}
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}
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}
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//--- close the file
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FileClose(file_handle);
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PrintFormat("Data is written, %s file is closed",InpFileName);
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}
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else
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PrintFormat("Failed to open %s file, Error code = %d",InpFileName,GetLastError());
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}
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//+------------------------------------------------------------------+
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