From: Daniel Berger <djberg96@...>
Date: 2005-05-21T05:40:15+09:00
Subject: Win32API question - PathAppend (in/out variable issue)

Hi all,

Ruby 1.8.2.
Windows XP Pro

I'm having a bit of an issue with an in/out variable with the
PathAppend() function.  I have no problem when I use a C extension, but
when I used Win32API, I don't get the desired output.  Here's the code:

# test.rb
require "Win32API"

PathAppend = Win32API.new("shlwapi","PathAppend","PP","L")

path = 'C:\foo'
PathAppend.call(path, 'bar')

p path # 'C:\foo', but expect 'C:\foo\bar'

I've tried padding 'path' and a few other tricks, but nothing has
worked.  What am I doing wrong?

Regards,

Dan