Sujet : canvas pixel commands?
De : clt.to.davebr (at) *nospam* dfgh.net
Groupes : comp.lang.tclDate : 03. Nov 2024, 03:53:32
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <06417306024121001@llp>
References : 1
From: saito <saitology9@gmail.com>
Date: Wed, 30 Oct 2024 16:40:08 -0400
Subject: canvas pixel commands?
Does the canvas allow for pixel level access? I am mostly interested in
getting the color at a certain pixel within the canvas.
The Img package includes img-window that can create a Tk photo image of the canvas window.
More recent Tk's (9.0?) have a canvas subcommand image that creates a Tk photo image of the canvas.
Once you have a Tk photo image, the get subcommand can read any pixel.
Dave B