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From: "Glaux" <glaux AT centrum DOT cz>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: How to detect WindowsNT/2k/XP from my DJGPP program?
Date: 13 Mar 2007 04:00:38 -0700
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Thanks, it's really simple.
But I cannot find any reference in my DJGPP docs to "_os_trueversion"
only in dos.h and libc.
I'd like see some description which shows what value this variable can
get for various OS.
If I understand well It was added in DJDEV  2.04 beta, is it oficial
or some kind of hack? Can I rely it will be included in (maybe some)
future versions of DJGPP?

Gerrit van Niekerk napsal:
> On 12 Mar 2007 at 8:04, Glaux wrote:
> > could you tell me how simply and reliable runtime check if my DJGPP
> > prog is running under WinNT-XP dos box? I need to exclude some code
> > from execution under NT.
>
>       if (_os_trueversion == 0x532) {	/* Windows NT, 2000, XP */
>
>       }
> --
> Gerrit van Niekerk
> GP van Niekerk Ondernemings BK
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