GNU bug report logs - #1077
23.0.60; x-create-frame: (wrong-type-argument number-or-marker-p nil)

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: martin rudalics <rudalics <at> gmx.at>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 1077 <at> debbugs.gnu.org
Subject: bug#1077: 23.0.60; x-create-frame: (wrong-type-argument number-or-marker-p nil)
Date: Wed, 01 Dec 2010 10:48:22 -0500

> `menu-bar-lines'
>      The number of lines to allocate at the top of the frame for a menu
>      bar.  The default is 1.  A value of `nil' means don't display a
>      menu bar.  *Note Menu Bar::.  (The X toolkit and GTK allow at most
>      one menu bar line; they treat larger values as 1.)

> so `nil' is a valid value and evaluating a menu bar item probably should
> know how to handle it.

I think the above doc only means that the C code interprets a nil as
meaning  "no menu bar" when you set that frame parameter.  Whether it
also means that this same C code can return nil when you query this
parameter is not quite so clear.


        Stefan

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