//+------------------------------------------------------------------+
//| RSI-Cross50_Alert.mq4 |
//| Copyright © 2006, Robert Hill |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2007, Robert Hill"
#property link ""
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Red
#property indicator_width1 1
extern int RSI_Period=14;
double rsi[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0, DRAW_LINE, STYLE_SOLID);
SetIndexBuffer(0, rsi);
SetIndexLabel (0, "RSI" + "("+RSI_Period+")");
SetLevelStyle(STYLE_DASH, 1, Silver);
SetLevelValue(0, 50);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
int limit, i;
double RSInow, RSIprevious;
datetime alertTag;
int counted_bars=IndicatorCounted();
//---- check for possible errors
if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
for(i = 0; i <= limit; i++)
{
RSInow = iRSI(NULL, 0, RSI_Period, PRICE_CLOSE, i);
RSIprevious = iRSI(NULL, 0, RSI_Period, PRICE_CLOSE, i+1);
rsi[i] = RSInow;
if (RSInow > 50 && RSIprevious < 50.0)
{
if ( alertTag!=Time[0])
{
PlaySound("news.wav");// buy wav
Alert(Symbol()," M",Period()," RSI cross above 50");
}
alertTag = Time[0];
}
else if (RSInow < 50.0 && RSIprevious > 50.0)
{
if ( alertTag!=Time[0])
{
PlaySound("news.wav"); //sell wav
Alert(Symbol()," M",Period()," RSI cross below 50");
}
alertTag = Time[0];
}
}
return(0);
}
Sample
Analysis
Market Information Used:
Series array that contains open time of each bar
Indicator Curves created:
Implements a curve of type DRAW_LINE
Indicators Used:
Relative strength index
Custom Indicators Used:
Order Management characteristics:
Other Features:
It plays sound alerts
It issuies visual alerts to the screen