GNU bug report logs - #6763
24.0.50.1; Doc string of `window-line-height'

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Package: emacs;

Reported by: IRIE Shinsuke <irieshinsuke <at> yahoo.co.jp>

Date: Fri, 30 Jul 2010 13:56:02 UTC

Severity: minor

Found in version 24.0.50.1

Done: Lars Magne Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: IRIE Shinsuke <irieshinsuke <at> yahoo.co.jp>
To: 6763 <at> debbugs.gnu.org
Subject: bug#6763: 24.0.50.1; Doc string of `window-line-height'
Date: Fri, 30 Jul 2010 22:55:17 +0900

Hi,

Doc string of `window-line-height' says:

  Return nil if window display is not up-to-date.  In that case, use
  `pos-visible-in-window-p' to obtain the information.

However, using `pos-visible-in-window-p' seems ineffectual.
In fact, the following expression often returns nil:

  (progn (pos-visible-in-window-p)
         (window-line-height))

So I use `redisplay' instead of `pos-visible-in-window-p' as:

  (or (window-line-height)
      (and (redisplay t)
           (window-line-height)))

and it correctly works.

Please correct the doc string.

IRIE Shinsuke
This bug report was last modified 14 years and 11 days ago.

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