Again, someone has stolen a page out of my current code. :) At least
it means that I wasn't insane to think it up. Either that, or there
are two insane people here...

More opinions, please? Where is Lothar? He's one of the most
experienced in GUI toolkits...

Dan

>   vbox { |v|
>     canvas { ... }
>     button("Close") { v.close }
>   }