On Thu, 2013-11-14 at 02:23 +0100, Don Norcott wrote:
> Thanks have had a look at the links above and a couple of other sites. 
> I will go back and look again once I have explored any others 
> recommended.
> 
> Also looking for any negative comments about bad experiences with GUIs 
> so I can avoid exploring them.
> 
> Don
> 

Of course the GTK+ GUI together with Cairo works very well, at least for
Linux and GTK2, GTK3 support is not much tested.

http://ruby-gnome2.sourceforge.jp/

But for you and Windows Qt may be a better choice...