From: "A. Sinan Unur" <asu1 AT cornell DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Win2000 and nearptr
Date: 22 May 2002 22:13:33 GMT
Organization: Cornell University
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"Rafal 'Raf256' Maj" <admin AT raf256 DOT com> wrote in
news:Xns9216E630AF6Eadminraf256com AT 213 DOT 180 DOT 128 DOT 20: 

> "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> wrote in
> news:9003-Wed22May2002205929+0300-eliz AT is DOT elta DOT co DOT il: 
> 
>>> __djgpp_nearptr_enable();
>>> *((unsigned char*)0xB8000 + __djgpp_conventional_base +
>>> ((x+y*80)*2))='A'; 
>> You cannot use nearptr facilities on Windows 2000, Windows NT, and
>> Windows XP (and any other descendants of the NT family): those
>> versions of Windows don't allow to define a huge segment limit for
>> the data descriptor that is needed for nearptrs to work.
> 
> and what is work around for this problem ? ther must be some way to
> acces 0xB800:0000 in Win2000, is there ?
> 

I would suggest using _farpeekX and _farpokeX functions. They work fine in 
XP. Take a look at info libc func conio.

Sinan.