From: David De La Harpe Golden <david@harpegolden.net>
To: Seiji Zenitani <zenitani@mac.com>
Cc: emacs-devel@gnu.org
Subject: Re: new frame-parameter "alpha"
Date: Sat, 15 Mar 2008 20:53:57 +0000 [thread overview]
Message-ID: <47DC3765.6030200@harpegolden.net> (raw)
In-Reply-To: <AC6C8CFB-9606-43E9-8935-70D261BAE4FE@mac.com>
Seiji Zenitani wrote:
> Reportedly it works on "X.org (>=6.8) or XGL with composite extension".
> Is there any way to detect the capability?
>
[Well, I think there also needs to be a compositing manager in the loop
-it's possible to have a composite extension capable X server with no
composting manager actually running, so e.g. detecting the composite
extension is no guarantee the property will take effect]
If there's a running compositing manager, it'll be owning the
"_NET_WM_CM_S{N}" X Selection(s), where {N} is screen number.
N.B. But IIRC it's also quite possible to fire up or restart a
compositing manager in the middle of an existing X session, so you
probably shouldn't conditionalise property-setting behaviour on the
presence of one, maybe just warn "No compositing manager currently
running, may have no effect." at most if one isn't detected.
next prev parent reply other threads:[~2008-03-15 20:53 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-14 11:02 new frame-parameter "alpha" Seiji Zenitani
2008-03-14 18:28 ` Stefan Monnier
2008-03-15 2:41 ` David De La Harpe Golden
2008-03-15 20:22 ` Seiji Zenitani
2008-03-15 20:53 ` David De La Harpe Golden [this message]
2008-03-15 19:54 ` Seiji Zenitani
2008-03-15 21:19 ` Stefan Monnier
2008-03-18 20:11 ` Brian Cully
2008-03-19 5:55 ` Seiji Zenitani
2008-03-19 20:23 ` David De La Harpe Golden
2008-03-26 0:46 ` Seiji Zenitani
2008-03-19 5:51 ` Seiji Zenitani
2008-03-19 16:16 ` Stefan Monnier
2008-03-20 22:47 ` Seiji Zenitani
2008-03-24 19:26 ` Stefan Monnier
2008-04-29 3:12 ` Seiji Zenitani
2008-04-29 7:13 ` Glenn Morris
2008-05-02 15:09 ` Stefan Monnier
2008-03-20 15:22 ` Ken Raeburn
2008-03-20 22:53 ` Seiji Zenitani
-- strict thread matches above, loose matches on Subject: below --
2008-04-05 17:21 Seiji Zenitani
2008-05-02 20:37 Seiji Zenitani
2008-05-13 20:29 ` Stefan Monnier
2008-05-14 16:16 ` Seiji Zenitani
[not found] <EEC622D2-0119-1000-F1CB-50016375E1D3-Webmail-10013@mac.com>
2008-05-15 3:56 ` Seiji Zenitani
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