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Subj : Re: shared data in DLL
To   : borland.public.cpp.borlandcpp
From : Jeff Kish
Date : Mon May 24 2004 09:22 am

On Sun, 23 May 2004 01:45:59 -0700, Ken Fong <fong@triumf.ca> wrote:

>Gary,
>  I'm actually thinking about shared data segment in DLL.
>I found how to do it in : 
>http://bdn.borland.com/article/0,1410,20132,00.html
>  It's an example for BCB 4.0 and NT/4  but I've tried it on
>BC 5.02 and Win98 and it worked as well.
>  But I'll look into using memory mapped files as well.
>  Thanks.
>Ken
>
>Gary Setter wrote:
>
>> Hi Ken,
>> What you are talking about is Interprocess communication. It comes up in
>> the news groups fairly often so you should be able to search all the
>> Borland newsgroups and find something. My first guess would be memory
>> mapped files. Check out CreateFileMapping and related functions. There is
>> a section on Interprocess communication in the Win32 help file.
>> Gary
>> 
I think memory mapped files are the only "official" way of doing this,
but a shared data segment might work for you.
HTH
Jeff Kish

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