GeneralTradingSarl
85 lines
3.9 KiB
Plaintext
85 lines
3.9 KiB
Plaintext
//+------------------------------------------------------------------+
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//| Demo_FileWriteDouble.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="EURJPY"; // currency pair
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input ENUM_TIMEFRAMES InpSymbolPeriod=PERIOD_M15; // time frame
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input int InpMAPeriod=10; // smoothing period
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input int InpMAShift=0; // indicator shift
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input ENUM_MA_METHOD InpMAMethod=MODE_SMA; // smoothing type
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input ENUM_APPLIED_PRICE InpAppliedPrice=PRICE_CLOSE; // price type
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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="MA.csv"; // 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 ma_buff[];
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datetime time_buff[];
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int size;
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//--- receive MA indicator handle
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ResetLastError();
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int ma_handle=iMA(InpSymbolName,InpSymbolPeriod,InpMAPeriod,InpMAShift,InpMAMethod,InpAppliedPrice);
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if(ma_handle==INVALID_HANDLE)
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{
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//--- failed to receive the indicator handle
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PrintFormat("Error when receiving indicator handle. Error code = %d",GetLastError());
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return;
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}
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//--- being in the loop until the indicator calculates all its values
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while(BarsCalculated(ma_handle)==-1)
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Sleep(20); // a pause to allow the indicator to calculate all its values
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PrintFormat("Indicator values starting from %s will be written to the file",TimeToString(InpDateStart));
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//--- copy the indicator values
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ResetLastError();
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if(CopyBuffer(ma_handle,0,InpDateStart,date_finish,ma_buff)==-1)
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{
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PrintFormat("Failed to copy the indicator values. Error code = %d",GetLastError());
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return;
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}
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//--- copy the time of the appropriate bars' arrival
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ResetLastError();
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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(ma_buff);
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//--- free the memory occupied by the indicator
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IndicatorRelease(ma_handle);
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//--- open the file for writing the indicator 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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//--- first, write the size of data sample
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FileWriteDouble(file_handle,(double)size);
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//--- write the indicator time and value to the file
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for(int i=0;i<size;i++)
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{
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FileWriteDouble(file_handle,(double)time_buff[i]);
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FileWriteDouble(file_handle,ma_buff[i]);
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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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