System.CurrentSystemTimeZone.nativeGetDaylightChanges C# (CSharp) Method

        internal extern static short[] nativeGetDaylightChanges();
    } // class CurrentSystemTimeZone

        public override DaylightTime GetDaylightChanges(int year)
        {
            if (year < 1 || year > 9999)
            {
                throw new ArgumentOutOfRangeException("year", Environment.GetResourceString("ArgumentOutOfRange_Range", (object)1, (object)9999));
            }
            object key = (object)year;

            if (!this.m_CachedDaylightChanges.Contains(key))
            {
                lock (CurrentSystemTimeZone.InternalSyncObject)
                {
                    if (!this.m_CachedDaylightChanges.Contains(key))
                    {
                        short[] local_3 = CurrentSystemTimeZone.nativeGetDaylightChanges(year);
                        if (local_3 == null)
                        {
                            this.m_CachedDaylightChanges.Add(key, (object)new DaylightTime(DateTime.MinValue, DateTime.MinValue, TimeSpan.Zero));
                        }
                        else
                        {
                            DateTime     temp_65  = CurrentSystemTimeZone.GetDayOfWeek(year, (uint)local_3[0] > 0U, (int)local_3[1], (int)local_3[2], (int)local_3[3], (int)local_3[4], (int)local_3[5], (int)local_3[6], (int)local_3[7]);
                            DateTime     local_4  = CurrentSystemTimeZone.GetDayOfWeek(year, (uint)local_3[8] > 0U, (int)local_3[9], (int)local_3[10], (int)local_3[11], (int)local_3[12], (int)local_3[13], (int)local_3[14], (int)local_3[15]);
                            TimeSpan     local_5  = new TimeSpan((long)local_3[16] * 600000000L);
                            DateTime     temp_102 = local_4;
                            TimeSpan     temp_103 = local_5;
                            DaylightTime local_6  = new DaylightTime(temp_65, temp_102, temp_103);
                            this.m_CachedDaylightChanges.Add(key, (object)local_6);
                        }
                    }
                }
            }
            return((DaylightTime)this.m_CachedDaylightChanges[key]);
        }