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Subject:	Re: Using cygwin from win32 (MS VC) app
References:	<a9e20v$m01$1 AT main DOT gmane DOT org>
From:	Jesper Eskilson <jojo AT virtutech DOT se>
Organization:	Virtutech AB
Date:	15 Apr 2002 11:42:50 +0200
In-Reply-To:	<a9e20v$m01$1@main.gmane.org> ("Kristopher Buschelman"'s message of "Mon, 15 Apr 2002 01:11:29 -0700")
Message-ID:	<u67r8lhti05.fsf@sebastian.uppsala.vtech>
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"Kristopher Buschelman" <kbuschelman AT attbi DOT com> writes:

> Then, from the MS-VisualStudio c language code, I make DYNAMIC calls to the
> wrapper routine via GetProcAddress....  It works fine, but making the
> wrapper is a bit less than desirable, not because of the dynamic call --
> which I want anyway.
> 
> When I try to make the dynamic call directly to cygwin1.dll (cygwin
> 1.3.10-1), I get a memory access violation -- memory could not be read.

I tried doing the same, but never managed to figure out how to initialize
the DLL in the right fashion.

I resorted to parsing the output from popen("cygpath -w ..."). Not as
elegant, but much simpler.

> My question is, is there something "obvious" I have missed?  Why can I not
> do this directly on cygwin1.dll?  What happens behind the scenes to make the
> wrapper approach work, while the direct dynamic call fails?  Will there be a
> cygwinapi.dll (pick your favorite name) which can be linked to dynamically
> without additional setup like my wrapper dll?

Probably not unless someone wants it bad enough to write it. I don't.

-- 
/Jesper


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