Convert time_t to System::DateTime ???

[PeteOlcott]

I need to convert time_t to System::DateTim e. All of the examples that
I found are either in C# or in the obsolete managed C++ syntax. What
is the current syntax for converting a (probably 64 bit) time_t value
to System::DateTim e ???

[Mark Salsbery [MVP]]

Re: Convert time_t to System::DateTim e ???


"PeteOlcott " <PeteOlcott@gma il.comwrote in message
news:3e1d1cb6-371e-4f86-bb5f-ba58ede93b9d@m3 g2000hsc.google groups.com...

I need to convert time_t to System::DateTim e. All of the examples that
I found are either in C# or in the obsolete managed C++ syntax. What
is the current syntax for converting a (probably 64 bit) time_t value
to System::DateTim e ???

time_t t = ...;
long long filetime = t * 10000000LL + 116444736000000 000LL;
DateTime datetime = DateTime::FromF ileTimeUtc(file time);
Console::WriteL ine(datetime.To String());



Mark

--
Mark Salsbery
Microsoft MVP - Visual C++

[Mark Salsbery [MVP]]

Re: Convert time_t to System::DateTim e ???

Here's my source, BTW:

Converting a time_t Value to a File Time

http://msdn.microsoft.com/en-us/library/ms724228(VS.85).aspx

Mark

--
Mark Salsbery
Microsoft MVP - Visual C++

[PeteOlcott]

Re: Convert time_t to System::DateTim e ???

On Sep 22, 5:45 pm, "Mark Salsbery [MVP]"
<MarkSalsbery[MVP]@newsgroup.nosp amwrote:

Here's my source, BTW:
>
Converting a time_t Value to a File Timehttp://msdn.microsoft. com/en-us/library/ms724228(VS.85) .aspx
>
Mark
>
--
Mark Salsbery
Microsoft MVP - Visual C++

Here is the answer that I derived:

System::DateTim e time_tToSystemD ateTime(time_t tt)
{
tm* timeptr = gmtime(&tt);
DateTime sdt(timeptr->tm_year + 1900, timeptr->tm_mon + 1, timeptr-

>tm_mday, timeptr->tm_hour, timeptr->tm_min, timeptr->tm_sec);

return sdt;
}

[PeteOlcott]

Re: Convert time_t to System::DateTim e ???

On Sep 22, 7:06 pm, PeteOlcott <PeteOlc...@gma il.comwrote:

On Sep 22, 5:45 pm, "Mark Salsbery [MVP]"
>
<MarkSalsbery[MVP]@newsgroup.nosp amwrote:

Here's my source, BTW:

>

Converting a time_t Value to a File Timehttp://msdn.microsoft. com/en-us/library/ms724228(VS.85) .aspx

>

Mark

>

--
Mark Salsbery
Microsoft MVP - Visual C++

>
Here is the answer that I derived:
>
System::DateTim e time_tToSystemD ateTime(time_t tt)
{
  tm* timeptr = gmtime(&tt);
  DateTime sdt(timeptr->tm_year + 1900, timeptr->tm_mon + 1, timeptr-
>
>
>

tm_mday, timeptr->tm_hour, timeptr->tm_min, timeptr->tm_sec);

  return sdt;
}- Hide quoted text -
>
- Show quoted text -

Here it is again, (Hopefully with better formatting)

System::DateTim e time_tToSystemD ateTime(time_t tt)
{
tm* timeptr = gmtime(&tt);
DateTime sdt(timeptr->tm_year + 1900,
timeptr->tm_mon + 1,
timeptr->tm_mday,
timeptr->tm_hour,
timeptr->tm_min,
timeptr->tm_sec);
return sdt;
}