MA1st_ OnCalculate

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[])
  {
//---

   if(BarsCalculated(hMA)<rates_total)
      return(0);

   int to_copy;
   to_copy=rates_total-prev_calculated;
   if(to_copy==0)
      to_copy++;

   if(CopyBuffer(hMA,0,0,to_copy,MABuffer)<=0)
      return(0);
//   Print(rates_total,",",prev_calculated);

//--- return value of prev_calculated for next call
   return(rates_total);
  }