PointPrice

//+------------------------------------------------------------------+
//|                                                   PointPrice.mq4 |
//|                     Copyright © 2010, Ñåðãååâ Àëåêñåé aka sergeev|
//+------------------------------------------------------------------+
 
#property indicator_chart_window
 
#property indicator_buffers 1
#property indicator_color1 LimeGreen
 
extern string HintMode="0-Close; 1-Open; 2-High; 3-Low; 4-Median; 5-Typical; 6-Weighted";
extern int Mode=PRICE_MEDIAN;
extern int Size=1;
extern string HintArrow="key code from Wingdings: 167-square, 119-rhombus, 159-circle";
extern int Arrow=159;

double PP[];
 
//------------------------------------------------------------------ 
int init()    
{ 
	Size=MathMax(Size, 1);
	SetIndexBuffer(0,PP); SetIndexStyle(0, DRAW_ARROW, EMPTY, Size); SetIndexArrow(0, Arrow); 
	return(0);  
}
//------------------------------------------------------------------ 
int deinit()    {    return(0);  }
//------------------------------------------------------------------ start
int start()
{ 
	for(int i=0; i<Bars; i++) 
		switch (Mode)
		{
			case PRICE_CLOSE: PP[i]=Close[i]; break;
			case PRICE_OPEN: PP[i]=Open[i]; break;
			case PRICE_HIGH: PP[i]=High[i]; break;
			case PRICE_LOW: PP[i]=Low[i]; break;
			case PRICE_MEDIAN: PP[i]=(High[i]+Low[i])/2; break;
			case PRICE_TYPICAL: PP[i]=(High[i]+Low[i]+Close[i])/3; break;
			case PRICE_WEIGHTED: PP[i]=(High[i]+Low[i]+Close[i]+Close[i])/4; break;
			default: Mode=PRICE_CLOSE; PP[i]=Close[i]; break;
		}
	return(0);
}