From: Chris Hulan <chris.hulan@...>
Date: 2010-02-13T11:55:06+09:00
Subject: Re: Can SWIN CommonDialog.openFilename() select multiple files?

I was able to get your code to work, surprisingly the docs seem to
actually be correct ;)
Here is your (Siep) code expanded a bit:
require 'swin'
OFN_ALLOWMULTISELECT = 0x200
OFN_EXPLORER  = 0x80000
NUL = "\x00"
filetype_filter = [['Ruby files (*.rb)','*.rb'],['All files (*.*)',
'*.*']]
paths = SWin::CommonDialog::openFilename( nil, filetype_filter,
OFN_EXPLORER|OFN_ALLOWMULTISELECT, 'Choose one or more files.')
if paths
  files = paths.split(NUL)
  if files.length > 1
    puts "Found #{files.length-1} files in #{files[0]}"
    files[1..-1].each_with_index{|el,i| puts "#{i} => #{el}"}
  else
    d,f = File.split(files[0])
    puts "Single file: #{f} in #{d}"
  end
else
  puts "No selction made"
end

using OFN_EXPLORER returns the list of files as a string will NUL
separating the file names, allowing file names to contain spaces. The
directory is the first item in this case
If a single file is selected, the result is a single string with the
full path and file name.
Selecting cancel in the dialog results in a nul return value.

I have to thank Louis Laverna for his work on the new Ruby installer,
and epecially the dev kit that allowed me to build and install swin to
play with this

Cheers