From: Mathew Cucuzella <kookjr@...>
Date: 2010-06-08T01:33:41+09:00
Subject: Re: using TkEntry with copy/paste

Hidetoshi NAGAI wrote:
> How about the following
> 
> <code>
> require 'tk'
> top   = TkRoot.new
> var   = TkVariable.new
> entry = TkEntry.new(top, :state=>'readonly',
>                          :textvariable=>var).grid(:row=>0, :column=>0)
> TkButton.new(top, :text=>'Convert',
>                   :command=>proc{var.value = 'hi'}).grid(:row=>1, 
> :column=>0)
> 
> Tk.mainloop
> </code>

Thanks, that will work. I tried what I thought was the equivalent
(below) but it didn't work. The only real difference was that I
didn't pass my config params as function arguments.

<code>
require 'tk'

top = TkRoot.new
# variable used in entry field, written with button press
text_var = TkVariable.new
entry = TkEntry.new(top) {textvariable = text_var; grid('row'=>0, 
'column'=>0)}

TkButton.new(top) {text 'Convert'; grid('row'=>1, 'column'=>0);
  command proc {
    # the next line does not show the string in the TkEntry
    text_var.value = "using variable"
  }
}
</code>
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