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From: nicolas AT chouette DOT saclay DOT cea DOT fr (Eric NICOLAS)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: V2 questions
Date: 5 Dec 1995 07:51:05 GMT
Organization: Commissariat a l'energie atomique
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:: 1. V2 is dpmi-compliant, but it is possible to make and use DLLs like in 
::    well-known dpmi servers (windoze...) ?

:You can make DXE's with V2, which are a very simple form of dynamic 
:executable code (used by EMU387).

Thanks. So now, where can I find documentation on how to write such DXE's ??

:: 3. I found some code in the tests directory about loading a second program
::    in memory (V2load() function) and jump to it. Is this only a test or this
::    feature will stay in the final draft ?

:This feature is used by the debuggers (and the V2 version of "go32") and
:will be in the final release.  You must use -ldbg to link this routine.

So here is a very technical question about that :

I have a 1st program (let us call it S, like Server). I want S to load a 
second program B, and later a third program C.
It is possible in B or C to call functions in A ? If yes, how can I manage
those calls at the linking stage of B or C. Must I provide minimal functions
with same operands as is A, but which only perform the jump to A services ?
How can I obtain addresses of functions in A, must I keep a table of 
functions' offsets in the code ?

The goal is to make my graphical environment (SWORD) multi-app like windoze.
The actual SWORD would become S (the graphic windows Server), and would
load applications. Those applications would need to call funcions in SWORD.
All that I described earlier is one pb, the other is that SWORD is in C++, so
I'm not dealing with functions, but with objects methods.

Any ideas would be greatly appreciated...

Thanks,
	Eric.