Greetings Ruby Community:

Question: How do I effectively erase a filled rectangle to reveal the 
RubyTk canvas' background "color" beneath it?  I'm having a tough time 
trying to "remove' all traces of the filled widgets that I've drawn.

Details: I created a TkcRectange on a TkCanvas using a fill option color 
of, say, 'antique white'.  I then needed to "remove" the rectangle, but 
when I wrote over it without the fill option specified, thinking that 
that would "erase" the original rectangle, it didn't and instead left 
the first rectangle's color in place, inferring that the background 
"color" is transparent.  So I have temporarily been using color 'grey83' 
to overwrite my rectangles to get as close as possible to the background 
grey of the canvas.  And, hey, nobody wants to embody their ignorance in 
code!  I am using Ruby 1.8.2 under Windows 2000 Professional.

Note: I am new to Ruby, but I have been thumbing through the pickaxe 
book, and reading through various Ruby web resource pages, (for a few 
days now, I am almost embarrassed to admit (:>) ), all to no avail.  So 
far, I have not as yet been able to figure out how I can reveal that 
oddish grey color of the RubyTk canvas after I write over it with 
various widgets.  Any help or direction on this problem will be greatly 
appreciated.

Best regards,

David Bailey

david.bailey / technologist.com
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