Re: DllMain implementation

From:

"William DePalo [MVP VC++]" <willd.no.spam@mvps.org>

Newsgroups:

microsoft.public.vc.language

Date:

Mon, 11 Feb 2008 01:33:46 -0500

Message-ID:

<O9bAPgHbIHA.3572@TK2MSFTNGP02.phx.gbl>

"George" <George@discussions.microsoft.com> wrote in message
news:5CA28152-9BE7-45A4-8F67-20DA96A6A307@microsoft.com...

CRT is implemented a way that if developer provides DllMain, it will use
the
provided one, or else the default DllMain is used.

I am wondering how to implement similar selective linking approach? i.e.
if
there are more than one implementations of a method of the same signature,
I
can control which one has the higher priority to link, and if the highest
priority one does not exist, the second priority one will be used (and
compiler will have no duplicated method warning/error).

Here is what I'm sure of: The CRT has a source file named Dllmain.c. The
comments say it is used when no other version is provided.

Here is what I'm not sure of: I think that it is a simple matter specifying
Dllmain.obj on the linker command line but _after_ all of the other object
modules and libraries. If the reference is resolved early, the CRT's Dllmain
won't be linked. If not, it will

Regards,
Will