forked from rosh/MQL5Book
68 lines
2.6 KiB
MQL5
68 lines
2.6 KiB
MQL5
//+------------------------------------------------------------------+
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//| ChartTemplate.mq5 |
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//| Copyright 2021, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#include "..\..\Include\PRTF.mqh"
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#include "..\..\Include\Periods.mqh"
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#include "..\..\Include\TplFile.mqh"
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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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// make sure Momentum(14) is not yet added, and add if not
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const int w = ChartWindowFind(0, "Momentum(14)");
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if(w == -1)
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{
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const int momentum = iMomentum(NULL, 0, 14, PRICE_TYPICAL);
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ChartIndicatorAdd(0, (int)ChartGetInteger(0, CHART_WINDOWS_TOTAL), momentum);
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// not necessary here, because the script will exit soon,
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// but it states explicitly our intention to not use this handle anymore
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IndicatorRelease(momentum);
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}
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ResetLastError();
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const string filename = _Symbol + "-" + PeriodToString(_Period) + "-momentum-rw";
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if(PRTF(ChartSaveTemplate(0, "/Files/" + filename)))
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{
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int handle = PRTF(FileOpen(filename + ".tpl",
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FILE_READ | FILE_WRITE | FILE_TXT | FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_UNICODE));
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// could use a second file for output
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// int writer = PRTF(FileOpen(filename + "w.tpl",
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// FILE_WRITE | FILE_TXT | FILE_SHARE_READ | FILE_SHARE_WRITE));
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// parse tpl-file into this container
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Container main(handle);
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main.read();
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// locate indicator in a nested container
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Container *found = main.find("/chart/window/indicator[name=Momentum]");
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if(found)
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{
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found.print();
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// add visualization on monthly timeframe, if not yet present
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Container *period = found.find("*/period[period_type=3]");
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if(period == NULL)
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{
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period = found.add("period");
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period.assign("period_type", "3");
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period.assign("period_size", "1");
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}
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else
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{
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Print("Monthly period already exists");
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}
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}
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main.write(); // or main.write(writer);
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FileClose(handle);
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PRTF(ChartApplyTemplate(0, "/Files/" + filename));
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}
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}
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//+------------------------------------------------------------------+
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