System.Globalization.Calendar.GetSystemTwoDigitYearSetting C# (CSharp) Method

        internal static int GetSystemTwoDigitYearSetting(int CalID, int defaultYearValue)
        {

            //
            // Call Win32 ::GetCalendarInfo() to retrieve CAL_ITWODIGITYEARMAX value.
            // This function only exists after Windows 98 and Windows 2000.
            //

            int twoDigitYearMax = nativeGetTwoDigitYearMax(CalID);
            if (twoDigitYearMax < 0)
            {
                    twoDigitYearMax = defaultYearValue;
            }
            return (twoDigitYearMax);
        }