Subject: bug#6763: 24.0.50.1; Doc string of `window-line-height'

From: IRIE Shinsuke <[email-masked]>
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