Mail Archives: djgpp/2000/03/16/14:07:46
Eli Zaretskii wrote:
>
> On Thu, 16 Mar 2000, Michael Tippach wrote:
>
> > > > > > it takes 3 more lines of assembly code to detect NT.
> > > > >
> > > > > That's not really true, especially now that you need to distinguish
> > > > > between NT and W2K.
> > > >
> > > > So does W2K return a different value than 0x3205 from function 0x3306?
> > >
> > > No, it reports the same value, but behaves differently.
> >
> > In how far does it behave differently? Could this different behaviour be
> > used to detect either version or is there no way to, by means of code,
> > inspect the differences without crashing the NTVDM on one system?
>
> No, I don't know about any way of telling NT and W2K apart without
> crashing the system.
What's "OS" in the environment set to? E.g. under NT 4 it's
"OS=Windows_NT" Admittedly, the user can change this to anything they
desire...
> This test is required *because* different
> work-arounds are needed in each case to avoid crashes and other
> ``surprises''.
>
> One problem with NT that needs to be worked around is that NT ignores the
> hight 16 bits of the user procedure address that is installed as a
> real-mode callback (e.g., for handling mouse events).
Does Win2K behave the same?
Regards,
Michael Tipppach
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