From: Sam <ruby / net153.net>
Subject: Tk Progress Bar color
Date: Sun, 10 May 2009 05:55:35 +0900
Message-ID: <4A05EDC4.1020008 / net153.net>
> Anyone know how to change the color of the Tk progress bar?  Everything 
> I try just ends up with:
> 
> /usr/lib/ruby/1.8/tk.rb:2762:in `__invoke': unknown option "-colors"
> 
> But all the documentation stats that it does have a colors option: 
> http://www.tutorialspoint.com/ruby/ruby_tk_progressbar.htm

Supported options depends on your version of BWidget libraries.
Probably, your progressbar widget is old and doesn't support 
'colors' option. 
You can check supported options and status of a widget by 'configinfo'
method or 'current_configinfo' method. 
If your progressbar widget is one of an old version, 'foreground'
option can  change its bar color.
-- 
Hidetoshi NAGAI (nagai / ai.kyutech.ac.jp)