Re: [TCLCORE] direct access to canvas pixels

[Griffin, B. <bri...@me...>]

Hi Terry,

This list is for discussion of Tcl/Tk core implementation, and not it's usage.  The best place to get answers about Tcl/Tk use is the group comp.lang.tcl (see Google Groups).

That being said, the answer is no, direct pixel access on the canvas is not possible.  Pixel access is possible in an image and images can be placed on the canvas.  I don't know if that will help.

-Brian

-----Original Message-----
From: T. Horsnell [mailto:ts...@mr...]
Sent: Wed 4/1/2009 4:16 AM
To: tcl...@li...
Subject: [TCLCORE] direct access to canvas pixels
 

Hi all,
Is there a tk routine which would enable me to directly read/write a 
pixel-area on a canvas?
I would like to be able to dump a selected canvas area into a tcl array 
for later processing, and then possibly write it back.

Cheers,
Terry



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