From: Rich Kilmer <rich@...>
Date: 2002-08-28T10:32:57+09:00
Subject: RE: Ruby developers: help push RPKG development and usage forward!! (it is like CPAN.pm, only Ruby)

http://kt-www.jaist.ac.jp/~ttate/ruby/ruby-dl.html

Example of calling message_box on win32:

require 'dl'

User32 = DL.dlopen("user32")
Kernel32 = DL.dlopen("kernel32")

MB_OK = 0
MB_OKCANCEL = 1

message_box = User32['MessageBoxA', 'ILSSI']
r,rs = message_box.call(0, 'ok?', 'error', MB_OKCANCEL)

case r
when 1
  print("OK!\n")
when 2
  print("Cancel!\n")
end

__END__

Notice...pure Ruby...no C...dynamically loading and calling .dlls.

Cool eh?

And it is part of Ruby 1.7.2 (in CVS).

-Rich Kilmer

> -----Original Message-----
> From: Massimiliano Mirra [mailto:list@NOSPAMchromatic-harp.com] 
> Sent: Tuesday, August 27, 2002 4:20 PM
> To: ruby-talk ML
> Subject: Re: Ruby developers: help push RPKG development and 
> usage forward!! (it is like CPAN.pm, only Ruby)
> 
> 
> On Tue, Aug 27, 2002 at 09:39:32PM +0900, Rich Kilmer wrote:
> > So, if one could describe the .dll/.so files that were needed by 
> > having a block of code that tries to load the .so/.dll files (using
> > Ruby/DL)
> > 
> > Thoughts?
> 
> Not really a thought, but... what is Ruby/DL?
> 
> Feel free to RTFM me to the appropriate place. :-)
> 
> Massimiliano
>