how to create a CText Tk widget ?

Hello all,

I know those two nice websites for informations on Ruby/Tk, but they are
not complete and it's really difficult to find documentation or samples
for Tk widgets on Ruby :
http://www.tutorialspoint.com/ruby/ruby_tk_guide.htm
http://www.tkdocs.com/

I want to try the CText widget, wich is part of tcllib package, but
can't find how to do it.

here is my last try from a Text sample I modified :

require 'tk'
require 'tkextlib/tcllib/ctext'

root = TkRoot.new do
  title "Window"
  minsize(320,200)
end

ctext = Tk::Tcllib::CText.new(root) do
  borderwidth 1
  font TkFont.new('arial 11 bold')
  pack('fill' => 'both', 'expand'=>true)
end
ctext.insert 'end', "test (hello)"

Tk.mainloop


and here is the error I got :

C:/Ruby193/lib/ruby/1.9.1/tk/package.rb:86:in `rescue in require':
TkPackage can't find package ctext (RuntimeError)
  from C:/Ruby193/lib/ruby/1.9.1/tk/package.rb:83:in `require'
  from C:/Ruby193/lib/ruby/1.9.1/tkextlib/tcllib/ctext.rb:14:in `<top
(required)>'
  from
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
`require'
  from
C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
`require'
  from tk_test7.rbw:2:in `<main>'

forgot to mention, I'm on WindowsXP with the last version of
RubyInstaller (with Tk included) and devkit..

so, can someone give me a little help to start with CText or simply
point me to ruby Tk samples, different from the common ones...?
thanks.

Fred

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