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Re: two-pixel trace left when move overlay

From: Kim F. Storm
Subject: Re: two-pixel trace left when move overlay
Date: Mon, 24 Apr 2006 00:49:49 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

"Drew Adams" <address@hidden> writes:

> I have an overlay in buffer *Completions* to highlight the current candidate
> during cycling of candidates in the minibuffer. I use this code to
> reposition the overlay:
> (if (symbol-value overlay)
>       (move-overlay (symbol-value overlay) start end buffer)
>     (set overlay (make-overlay start end buffer))
>     (overlay-put (symbol-value overlay) 'face face))
> In Emacs 20, 21, and a CVS snapshot of June 26, 2005, this works OK. In a
> CVS snapshot of 2006-03-20, when I move the overlay, a two-pixel (I believe)
> trace is left behind. See attached screenshots.

Hi Drew,  I tried to reproduce this with the files you sent me (I had to get
hexrgb.el from the wiki), but I don't see the problem on X/GNU/Linux.

Perhaps it is a Windoze specific problem?

Kim F. Storm <address@hidden> http://www.cua.dk

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