alpha blend in tkinter Canvas

[Joal Heagney]

Phlip wrote:
> 
> Hypo Nt:
> 
> If I have a tkinter Canvas, how do I paint in an object that "blends" with
> the color under it, instead of just jamming its own color in?
> 
> --
>   Phlip                          phlip_cpp at my-deja.com
> ============ http://c2.com/cgi/wiki?PhlIp ============
>   --  All sensors report Patti having a very good time  --

Parts of certain Tkinter Canvas objects can be created using None as a
colour, if say you want a black rectangle outline but not a colour fill.

import Tkinter
root = Tkinter.Tk()
c = Tkinter.Canvas(root,background='white'); c.pack(fill='both')
c.create_line(10,10,100,100,fill='red')
c.create_rectangle(20,20,90,90, fill = None, outline='black')

Was this what was required? 
-- 
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