Code: Select all

//< Expiration time control >
static datetime exp = D'01.02.2016';
if (Time[0] > exp){ Alert("expired"); return; }
//</Expiration time control >

Code: Select all

static const datetime expiryDate = D'2016.01.06';

int OnInit() {
   
   if ( TimeCurrent() > expiryDate ) {
      return(INIT_FAILED);
   }
   
   //---
   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[]) {

   //---
   if ( TimeCurrent() > expiryDate ) {
      MessageBox("Indicator has expired.","Expiry Error",0);
      ExpertRemove();
      return(0);
   }
   
   //--- return value of prev_calculated for next call
   return(rates_total);
}