forked from rosh/MQL5Book
60 lines
2.4 KiB
MQL5
60 lines
2.4 KiB
MQL5
//+------------------------------------------------------------------+
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//| ChartScaleTime.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\ChartModeMonitor.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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int flags[] =
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{
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CHART_SCALE,
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CHART_VISIBLE_BARS,
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CHART_FIRST_VISIBLE_BAR,
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CHART_WIDTH_IN_BARS,
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CHART_WIDTH_IN_PIXELS
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};
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ChartModeMonitor m(flags);
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Print("Initial state:");
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m.print();
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m.backup();
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while(!IsStopped())
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{
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m.snapshot();
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Sleep(500);
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}
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m.restore();
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}
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//+------------------------------------------------------------------+
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/*
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Initial state:
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[key] [value]
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[0] 5 4
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[1] 100 35
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[2] 104 34
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[3] 105 45
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[4] 106 715
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// 1) the chart is scaled down:
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CHART_SCALE 4 -> 3 // - the "scale" property changed
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CHART_VISIBLE_BARS 35 -> 69 // - number of visible bars increased
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CHART_FIRST_VISIBLE_BAR 34 -> 68 // - index of first visible bar increased
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CHART_WIDTH_IN_BARS 45 -> 90 // - potential chart capacity in bars increased
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// 2) right-side shift is switched off
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CHART_VISIBLE_BARS 69 -> 89 // - number of visible bars increased
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CHART_FIRST_VISIBLE_BAR 68 -> 88 // - index of first visible bar increased
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// 3) window is squeezed
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CHART_VISIBLE_BARS 89 -> 86 // - number of visible bars decreased
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CHART_WIDTH_IN_BARS 90 -> 86 // - potential chart capacity in bars decreased
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CHART_WIDTH_IN_PIXELS 715 -> 680 // - width in pixels decreased
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// 4) "End" key is pressed to go to latest quotes
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CHART_VISIBLE_BARS 86 -> 85 // - number of visible bars decreased
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CHART_FIRST_VISIBLE_BAR 88 -> 84 // - index of first visible bar decreased
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*/
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//+------------------------------------------------------------------+
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