[Pdx-pm] Scan OSX Window pixel by pixel

[Eric Wilhelm]

# from Eric Wilhelm
# on Tuesday 29 March 2011 23:21:

> $ time perl -MImager::Screenshot=screenshot -e 'my $s =
> screenshot();' real    0m1.131s

I should note that this is 5040 x 1050.  Trying it on a smaller (and 
virtual) desktop gives 0.075s for a 1472 x 350 screenshot.

--Eric
-- 
Human beings are relatively simple.  You just reward them for something 
and they will do it.
--William Cohan
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