From: email55555@...
Date: 2005-09-15T00:21:34+09:00
Subject: Re: TkDialog question

FYI.
There maybe a bug for dialog.name.
If a dialog does not show up yet, the value will be nil, but calling
name will give you exception.

Example:
dialog = TkDialog2.new(:title=>'Hello', :message=>'Exit?',
:buttons=>['Yes', 'No'], :default=>1)
# TkDialog2 will not showing at initialize time

puts dialog.value  # print nil
puts dialog.name # exception...

My suggestion is modify dialog.rb on the line # 202
def name
  @buttons[@val]
end

by

def name
  @val.nil? ? nil : @buttons[@val]
end