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From: martin rudalics <rudalics@gmx.at>
To: Francis Litterio <flitterio@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: frame-pixel-width returns incorrect value (CVS Emacs on Windows XP)
Date: Sun, 07 Sep 2008 11:37:24 +0200	[thread overview]
Message-ID: <48C3A0D4.5060604@gmx.at> (raw)
In-Reply-To: <i5i6vdx8vbke.fsf@gmail.com>

 > Using CVS Emacs on Windows XP, evaluate the below form in a frame that
 > is _not_ currently 60 columns wide by 20 rows high.  The values in the
 > resulting list are equal, but they should not be.
 >
 >    (let ((origwidth (frame-pixel-width (selected-frame))))
 >      (modify-frame-parameters nil '((width . 60) (height . 20)))
 >      ;;(sit-for 0)
 >      (list origwidth (frame-pixel-width (selected-frame))))
 >
 > If you uncomment the call to sit-for, the values in the resulting list
 > are different (as they should be).
 >
 > It appears that the second call to frame-pixel-width is unaware of the
 > change to the width of the frame made by modify-frame-parameters.
 >
 > The same problem happens with frame-pixel-height.  I don't know if this
 > is unique to Windows, since I don't have access to a Linux box right now.

We could add something like

    This is updated by redisplay, when it runs to completion.
    Simply modifying a frame parameter does not update this value.

to the doc-string just as we do with `window-end'.

martin




      reply	other threads:[~2008-09-07  9:37 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-07  4:00 frame-pixel-width returns incorrect value (CVS Emacs on Windows XP) Francis Litterio
2008-09-07  9:37 ` martin rudalics [this message]

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