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Re: What is normal these days (display.texi)?

From: Kim F. Storm
Subject: Re: What is normal these days (display.texi)?
Date: Mon, 10 Jul 2006 12:55:04 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

David Kastrup <address@hidden> writes:

>     @defun redraw-frame frame
>     @deffn Command redraw-display
> All of those functions work by _immediately_ clearing the respective
> frame or display, and then marking it for redisplay.
If that is not stated already in the docs, we should fix it.

> So why change the language in the case that is much less conspicuous
> (by not clearing the frame) as it does not cause a large blank window
> to show while Emacs is busy?

The name "force-window-update" (and the original text) 
indicate an immediate action.  But there is no immediate action.

So if a program wants to use, e.g posn-at-x-y, after making changes,
force-window-update is not the right thing to use to make sure the
display matrix is up-to-date.

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

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