#property indicator_chart_window

extern int shift = 1;

 int OnInit()
  {
   double a = High[shift];
   double b = Low[shift];
   double c = a-b;
   string d = DoubleToStr(NormalizeDouble((c/(10*Point)),3),3);
   double e = StrToDouble(d);
   
   Comment("1本前の足の高値 - 安値は、"+c+"です。\n"+"Pipsに変換すると、"+e+"Pipsです。");

   return(INIT_SUCCEEDED);
  }

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[])
  {

   return(rates_total);
  }