From: Andy Pelzer <kickass@...>
Date: 2003-11-18T08:08:34+09:00
Subject: Re: Ruby Extension/DLL Help

Hi, 

>> In the end, I had to create the DLL using MS Visual C++ and put the
DLL in c:\winnt\systems (or c:\windows
>> \system).
Since i don't have MSVC i couldn't test it your way. So i tried with
MinGW (which is delivered with Dev-C++), but couldn't manage to get my
extension compiled. Have to "investigate" a bit (-> read manual *g*),
seems MinGW doesn't accept include-paths with -I on command line??

>> I think there is an issue with cygwin on XP.  I am not sure if the
issue is with cygwin or XP.
Are you sure about the CygWin<->XP issue? I have another extension (not
using an additional/external dll), which compiles fine and also works
with Ruby under CygWin/XP (found an extension-example here:
http://www.bagley.org/~doug/shootout/compare/binext/ruby/Ackermann ->
working!). 

>> Once this was done, I used win32api to successfully access functions
in the library.
Why use Win32api to access the dll's functions? I have a dll-library,
provided by somebody else - no code available to me, so i wrote simple
"access-functions" in c, as an extension for Ruby. Am i mistaking
something here?

Anyways, thanks again, i'll keep on trying [ though not much time for it
;( ]

Greets

Andy