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Candles library
Source: https://fxcodebase.com/code/viewtopic.php?f=38&t=23331
Forum: 38 · Topic 23331 · 1 post(s)
Candles library
Alexander.Gettinger · Wed Sep 12, 2012 12:16 pm
Library provides user to draw the bars in the main or separate charts.
Before using the library must be placed in the directory /experts/include of MT4.
To connect the library, use the command “#include
int CandleDraw(int _Window, datetime _Time, double _Open, double _High, double _Low, double _Close, color _Color, int _Width=3) Draw a candle with the parameters (_Time, _Open, _High, _Low, _Close, _Color) in the window _Window. _Width - width of candle body.
int CandleDelete(int _Window, datetime _Time) Delete the candle with time _Time in window _Window.
void CandlesDeleteAll(int _Window) Delete all candles in window _Window.
bool IsCandle(int _Window, datetime _Time) The function returns true if candle with time _Time exists in the window _Window, otherwise false.
int CandleGet(int _Window, datetime _Time, double& _Open, double& _High, double& _Low, double& _Close, color& _Color, int& _Width) The function returns parameters of candle (_Open, _High, _Low, _Close, _Color, _Width) for specified _Window and _Time.
int CandleSet(int _Window, datetime _Time, int _index, double _value) The function sets the parameter from the specified _Window and _Time. _index can be: CANDLEPROP_CLOSE, CANDLEPROP_OPEN, CANDLEPROP_HIGH, CANDLEPROP_LOW, CANDLEPROP_COLOR, CANDLEPROP_WIDTH.
Example of use:
//+------------------------------------------------------------------+
//| CandlesSample.mq4 |
//| Copyright © 2012, Gehtsoft USA LLC |
//| http://fxcodebase.com |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2012, Gehtsoft USA LLC"
#property link "http://fxcodebase.com"
#include <Candles.mqh>
#property indicator_chart_window
extern int Shift=200;
extern int MaxBars=100;
double ShiftPip;
int init()
{
IndicatorShortName("Candles sample");
ShiftPip=Shift*Point;
return(0);
}
int deinit()
{
CandlesDeleteAll(0);
return(0);
}
int start()
{
if(Bars<=1) return(0);
int ExtCountedBars=IndicatorCounted();
if (ExtCountedBars<0) return(-1);
int pos;
int limit=Bars-2;
double O, H, L, C;
color Col;
int W;
if(ExtCountedBars>2) limit=Bars-ExtCountedBars-1;
pos=MathMin(limit,MaxBars);
while(pos>=0)
{
CandleDraw(0, Time[pos], Open[pos]+ShiftPip, High[pos]+ShiftPip, Low[pos]+ShiftPip, Close[pos]+ShiftPip, Yellow);
CandleSet(0, Time[pos], CANDLEPROP_COLOR, Red);
CandleSet(0, Time[pos], CANDLEPROP_WIDTH, 6);
CandleGet(0, Time[pos], O, H, L, C, Col, W);
Print(pos,": ",O,", ",H,", ",L,", ",C,", ",Col,", ",W);
if (Open[pos]==Close[pos] && IsCandle(0, Time[pos])) CandleDelete(0, Time[pos]);
pos--;
}
return(0);
}
Download library: