bool  CalendarCountryById(
   const long           country_id,     // country ID
   MqlCalendarCountry&  country         // variable for receiving a country description
   );

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
void OnStart()
  {
//--- get the list of countries from the economic calendar
   MqlCalendarCountry countries[];
   int count=CalendarCountries(countries);
//--- check the result
   if(count==0)
      PrintFormat("CalendarCountries() returned 0! Error %d",GetLastError());
//--- if there are two or more countries
   if(count>=2)
     {
      MqlCalendarCountry country;
      //--- now get a country description by its ID 
      if(CalendarCountryById(countries[1].id, country))
        {
         //--- prepare a country description
         string descr="id = "+IntegerToString(country.id)+"\n";
         descr+=("name = " + country.name+"\n");
         descr+=("code = " + country.code+"\n");
         descr+=("currency = " + country.currency+"\n");
         descr+=("currency_symbol = " + country.currency_symbol+"\n");
         descr+=("url_name = " + country.url_name);         
         //--- display a country description
         Print(descr);
        }
      else
         Print("CalendarCountryById() failed. Error ",GetLastError());
     }
//---
  }
/*
  Result:
   id = 999
   name = European Union
   code = EU
   currency = EUR
   currency_symbol = €
   url_name = european-union
*/