On Fri, Jun 20, 2008 at 14:21, Nicholas Calvert <nick.calvert@gmail.com> wrote:
> Cheers Gordon, you are a life saver. Whilst im on the same subject, i am
> also having trouble creating a new GUID. With Powershell i can do:
>
> $NEWGUID = [GUID]::NewGUID().ToString()
>
> Do you think its possible to do this with Ruby and ruby-wmi?

This is how I create GUIDs (requires win32utils gem, might not be
tested - I'm reinstalling ruby right now):

require 'windows/com'
require 'windows/unicode'

class String
# Return the portion of the string up to the first NULL character. This
# was added for both speed and convenience.
def nstrip
self[ /^[^\0]*/ ]
end
end

class Guid

BUFFER_SIZE = 100

attr_reader :data

def initialize(data = nil)
@data = data
create if data.nil?
end

def create
@data = 0.chr * 16
raise 'GUID Error' unless CoCreateGuid(@data)
end

def to_s
ret = 0.chr * BUFFER_SIZE
i = StringFromGUID2(@data, ret, BUFFER_SIZE)
wide_to_multi(ret[0..i*2]).nstrip
end

private

include Windows::COM
include Windows::Unicode

end

if File.expand_path(__FILE__) == File.expand_path($0)
puts Guid.new.to_s
end