MQL5Book/Indicators/p5/IndReplica2.mq5

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2025-05-30 16:09:41 +02:00
//+------------------------------------------------------------------+
//| IndReplica2.mq5 |
//| Copyright 2021, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property indicator_chart_window
#property indicator_buffers 1
#property indicator_plots 1
input ENUM_DRAW_TYPE DrawType = DRAW_LINE;
input ENUM_LINE_STYLE LineStyle = STYLE_SOLID;
double buffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
// register the array as indicator buffer
SetIndexBuffer(0, buffer);
// adjust visual settings of the plot under index 0
PlotIndexSetInteger(0, PLOT_DRAW_TYPE, DrawType);
PlotIndexSetInteger(0, PLOT_LINE_STYLE, LineStyle);
PlotIndexSetInteger(0, PLOT_LINE_COLOR, clrBlue);
return INIT_SUCCEEDED;
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const int begin,
const double &data[])
{
// on every new bar or many new bars (including first event)
if(prev_calculated != rates_total)
{
// update new bars
ArrayCopy(buffer, data, prev_calculated, prev_calculated);
}
else // ticks on current bar
{
// update the latest bar
buffer[rates_total - 1] = data[rates_total - 1];
}
return rates_total; // report number of processed bars for future calls
}
//+------------------------------------------------------------------+