VxD information

Alexandre Julliard julliard at winehq.com
Wed Apr 11 12:50:06 CDT 2001

Maurice van der Pot <griffon26 at kfk4ever.com> writes:

> I'd like to get started on VxD support, but I'm unable to find any useful 
> documentation on how it's implemented in Wine. I've been looking through 
> the sources (e.g. vxd.c, wprocs.spec) but I can't find the connection 
> between a call to int 2F and a call to the functions in vxd.c.

The connection is through int 2f ax=0x1684 (in msdos/int2f.c), which
does a GetProcAddress on wprocs and returns the vxd entry point to the
application. The app then calls the corresponding vxd directly with a
normal function call.

Alexandre Julliard
julliard at winehq.com

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