public static Task<int> Set(DateTimeOffset datetime)
{
SYSTEMTIME systime = new SYSTEMTIME();
systime.wYear = (ushort)datetime.Year;
systime.wMonth = (ushort)datetime.Month;
systime.wDay = (ushort)datetime.Day;
systime.wDayOfWeek = (ushort)datetime.DayOfWeek;
systime.wHour = (ushort)datetime.Hour;
systime.wMinute = (ushort)datetime.Minute;
systime.wSecond = (ushort)datetime.Second;
systime.wMilliseconds = (ushort)datetime.Millisecond;
int result = SetSystemTime(ref systime);
if (result == 0)
{
result = SystemDateTime.GetLastError();
string errorMessage = new Win32Exception(result).Message;
throw new Exception(errorMessage);
}
return Task.FromResult(result);
}
private extern static int SetSystemTime(ref SYSTEMTIME lpSystemTime);
private extern static void GetSystemTime(ref SYSTEMTIME lpSystemTime);
private extern static int SetSystemTime(ref SYSTEMTIME lpSystemTime);
private extern static void GetSystemTime(ref SYSTEMTIME lpSystemTime);
