From: Mathew Cucuzella <kookjr@...>
Date: 2010-06-07T18:26:05+09:00
Subject: using TkEntry with copy/paste

I'm writing a Ruby/Tk program where I want a TkEntry field with a
state of "readonly" so a user can copy/paste from it, but not modify
it. Unfortunately this prevents me from programatically changing it,
which I want to do. Is there a better way to accomplish that?

Sample code: TkEntry does not display "hi" after button click.


<code>
require 'tk'
top   = TkRoot.new
entry = TkEntry.new(top) {state "readonly";grid('row'=>0, 'column'=>0)}

TkButton.new(top) {text 'Convert'; grid('row'=>1, 'column'=>0);
  # the "entry" field update fails, as documented
  command proc    {entry.value = "hi"}
}
Tk.mainloop

## Environment
# Ubuntu 10.4
# 2.6.32-22-generic #36-Ubuntu SMP Thu Jun 3 22:02:19 UTC 2010
#   i686 GNU/Linux
# ruby 1.8.7 (2010-01-10 patchlevel 249) [i486-linux]
# libtcltk-ruby
# libtcltk-ruby1.8
</code>

Thanks,
Mathew Cucuzella
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