//****** project (module Trail): tf-test-g1_module_Trail_ind.mq5
//+------------------------------------------------------------------+
//|          The program code is generated Modular project generator |
//|                      Copyright 2010-2017, Sergey Pavlov (DC2008) |
//|                              http://www.mql5.com/ru/users/dc2008 |
//+------------------------------------------------------------------+
#property copyright "Copyright 2010-2017, Sergey Pavlov (DC2008)"
#property link      "http://www.mql5.com/ru/users/dc2008"
#property link      "1.00"
#property link      "Example of a multimodule expert: project tf-test-g1 module Trail"
//--- Display indicator in the chart window
#property indicator_chart_window
//--- Number of buffers to calculate the indicator
#property indicator_buffers 1
//--- Number of graphic series in the indicator
#property indicator_plots   1
//---
double      Buffer1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
{
//---
   ArraySetAsSeries(Buffer1,true);
   SetIndexBuffer(0,Buffer1,INDICATOR_DATA);
   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[])
{
   double TR=30;  // Trail in points
//--- calculation of Trail
   Buffer1[0]=TR;
   return(rates_total);
};
//+------------------------------------------------------------------+