54 lines
1.9 KiB
MQL5
54 lines
1.9 KiB
MQL5
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//+------------------------------------------------------------------+
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//| UseWPR3.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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#property indicator_separate_window
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#property indicator_buffers 1
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#property indicator_plots 1
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// drawing settings
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#property indicator_type1 DRAW_LINE
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#property indicator_color1 clrBlue
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#property indicator_width1 1
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#property indicator_label1 "WPR"
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input int WPRPeriod = 14;
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// indicator buffer
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double WPRBuffer[];
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// global variable for subordinate indicator
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int handle;
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//+------------------------------------------------------------------+
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//| Custom indicator initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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SetIndexBuffer(0, WPRBuffer);
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handle = iCustom(_Symbol, _Period, "IndWPR", WPRPeriod);
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return handle == INVALID_HANDLE ? INIT_FAILED : INIT_SUCCEEDED;
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}
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//+------------------------------------------------------------------+
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//| Custom indicator iteration function |
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//+------------------------------------------------------------------+
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int OnCalculate(const int rates_total,
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const int prev_calculated,
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const int begin,
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const double &data[])
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{
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// wait until the subindicator is calculated for all bars
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if(BarsCalculated(handle) != rates_total)
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{
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return prev_calculated;
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}
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// copy data from subordinate indicator into our buffer
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const int n = CopyBuffer(handle, 0, 0, rates_total - prev_calculated + 1, WPRBuffer);
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return n > -1 ? rates_total : 0;
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}
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//+------------------------------------------------------------------+
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