Get the array of country names available in the Calendar.
[out] An array of MqlCalendarCountry type for receiving all Calendar countries' descriptions.
Number of received descriptions. To get information about an error, call the GetLastError() function. Possible errors:
- 4001 – ERR_INTERNAL_ERROR (general runtime error),
- 5401 – ERR_CALENDAR_TIMEOUT (request time limit exceeded),
- 5400 – ERR_CALENDAR_MORE_DATA (array size is insufficient for receiving descriptions of all countries, only the ones that managed to fit in were received).