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Re: Selection threshold with mouse

From: Stefan Monnier
Subject: Re: Selection threshold with mouse
Date: Mon, 21 Jul 2014 10:20:25 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux)

> Because the existing methods are glyph-granular, not pixel-granular.
> When you tell them to stop at pixel coordinate X, they move one
> "display element" (e.g., character or image) at a time,

But they need to keep track either of the "current pixel position" (to
compare against X) or (equivalently) of "remaining pixels until X".
So they should know the exact pixel position.


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