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bug#12279: 24.2.50; x-window-property always returns nil
From: |
Chong Yidong |
Subject: |
bug#12279: 24.2.50; x-window-property always returns nil |
Date: |
Sun, 26 Aug 2012 21:51:06 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.2.50 (gnu/linux) |
Tassilo Horn <tsdh@gnu.org> writes:
> Running GNU/Linux with Xorg, since some time I cannot get X window
> properties anymore, that is, using emacs -Q (3 days old bzr checkout),
> all of these return nil:
>
> (x-window-property "WM_HINTS" nil "WM_HINTS" nil nil t)
> (x-window-property "WM_PROTOCOLS")
> (x-window-property "WM_NAME")
>
> I used xprop to get all X properies of the emacs frame itself, and I
> can't get any of them using `x-window-property'.
>
> In GNU Emacs 24.2.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.4.4)
> of 2012-08-23 on thinkpad
Can't really reproduce. With latest trunk, also with a GTK 3 build
(x86_64-unknown-linux-gnu, GTK+ Version 3.4.2), I get
M-: (x-window-property "WM_HINTS" nil "WM_HINTS" nil nil t)
==> [2 0 1 0 0 0 0 0 0]
I do get nil when looking up WM_PROTOCOLS and WM_NAME, but that is the
case on 24.1 as well. On a Emacs 23.4 build with X toolkit, looking up
WM_PROTOCOLS gives "" and looking up WM_NAME gives nil.