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Re: display-buffer change

From: martin rudalics
Subject: Re: display-buffer change
Date: Sat, 25 Aug 2007 09:56:08 +0200
User-agent: Mozilla Thunderbird 1.0 (Windows/20041206)

> I have seen a change in Emacs 22.1 from Emacs 21 that broke my use of
> dedicated windows.
> The problem is that (display-buffer buf) will change the contents of
> the current window, if the other window in the frame has a dedicated
> buffer.  In Emacs 21, a new window would be opened instead.


> I use a dedicated small window at the bottom of my frame that always
> contains the *compilation* buffer, and the new behaviour in Emacs 22
> seriously lower the usability of a lots of command, such as viewing
> diffs or showing source from gdb etc.
> I didn't find anything in NEWS that indicated that this was somehow
> intentional.

Could you please tell us whether you were able to resolve this problem.

In an earlier mail I tried to explain the new behavior as follows:

> You should be able to handle this by customizing
> `split-height-threshold' to a reasonable value (say 10).  Confer the
> doc-string of `display-buffer':
>   If a full-width window on a splittable frame is available to display
>   the buffer, it may be split, subject to the value of the variable
>   `split-height-threshold'.
> I didn't trace what caused the behavior to change from Emacs 21 to Emacs
> 22.  The Emacs 22 behavior is consistent with respect to the doc-strings
> of `split-height-threshold' and `display-buffer' though.

Please tell me whether that explanation is satisfactory.

Thanks in advance.

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