From: vladr AT usa DOT net (Vlad R.)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Question about djgpp's int-wrapper
Date: 12 Jun 2002 17:40:33 -0700
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

> Not only a big pain, but impossible. Or do you know how to call that
> from a plain DOZE program?

Very possible.  And yes, I do know how.

> Please don't top post and cut irrelevant parts.

I beg your pardon?!

--

To call that from a DOS program:
- write a VDD (a .dll)
- from a DOS program tell NTVDM to load that DLL, and then have the
DLL make the relevant system call.

For an example of how to do that:

- DOS loader (DOS, real-mode, but should also work in p-mode)
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/vdmsound/VDMSCore/Sources/VDDLoader/DOSDrv.cpp?rev=1.5&content-type=text/vnd.viewcvs-markup

- VDD (Win32)
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/vdmsound/VDMSCore/Sources/VDDLoader/VDDDispatch.cpp?rev=1.6&content-type=text/vnd.viewcvs-markup

- System call to NTDLL (Win32)
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/vdmsound/VDMSCore/Sources/VDDLoader/VDMServices.cpp?rev=1.8&content-type=text/vnd.viewcvs-markup

V.