//+------------------------------------------------------------------+
//| MTF_Bands.mq4 |
//| Copyright 2025, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, MetaQuotes Ltd."
#property link "https://www.mql5.com"
#property version "1.00"
#property strict
#property indicator_chart_window
#property indicator_buffers 3
#property indicator_color1 LightSeaGreen
#property indicator_color2 LightSeaGreen
#property indicator_color3 LightSeaGreen
//--- indicator parameters
input ENUM_TIMEFRAMES TimeFrame = PERIOD_D1; // 時間足
input int InpBandsPeriod=20; // Bands Period
input int InpBandsShift=0; // Bands Shift
input double InpBandsDeviations=2.0; // Bands Deviations
//--- buffers
double ExtMovingBuffer[];
double ExtUpperBuffer[];
double ExtLowerBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
//--- 1 additional buffer used for counting.
IndicatorBuffers(3);
IndicatorDigits(Digits);
//--- middle line
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,ExtMovingBuffer);
SetIndexShift(0,InpBandsShift);
SetIndexLabel(0,"Bands SMA");
//--- upper band
SetIndexStyle(1,DRAW_LINE);
SetIndexBuffer(1,ExtUpperBuffer);
SetIndexShift(1,InpBandsShift);
SetIndexLabel(1,"Bands Upper");
//--- lower band
SetIndexStyle(2,DRAW_LINE);
SetIndexBuffer(2,ExtLowerBuffer);
SetIndexShift(2,InpBandsShift);
SetIndexLabel(2,"Bands Lower");
//--- check for input parameter
if(InpBandsPeriod<=0)
{
Print("Wrong input parameter Bands Period=",InpBandsPeriod);
return(INIT_FAILED);
}
//---
SetIndexDrawBegin(0,InpBandsPeriod+InpBandsShift);
SetIndexDrawBegin(1,InpBandsPeriod+InpBandsShift);
SetIndexDrawBegin(2,InpBandsPeriod+InpBandsShift);
//--- initialization done
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[])
{
//---
if (_Period > TimeFrame && TimeFrame != PERIOD_CURRENT) return -1;
int limit = Bars - IndicatorCounted() - 1;
int min = PeriodSeconds(TimeFrame) / PeriodSeconds();
if (limit < min) limit = min;
for (int i = limit; i >= 0; i--) {
int bar = iBarShift(NULL, TimeFrame, Time[i]);
ExtUpperBuffer[i] = iBands(NULL,TimeFrame,InpBandsPeriod,InpBandsDeviations,InpBandsShift,PRICE_CLOSE,MODE_UPPER,bar);
ExtMovingBuffer[i] = iBands(NULL,TimeFrame,InpBandsPeriod,InpBandsDeviations,InpBandsShift,PRICE_CLOSE,MODE_MAIN,bar);
ExtLowerBuffer[i] = iBands(NULL,TimeFrame,InpBandsPeriod,InpBandsDeviations,InpBandsShift,PRICE_CLOSE,MODE_LOWER,bar);
}
return(rates_total);
}
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