2009/10/25
<xfce4-dev-request@...>
------------------------------
Message: 2
Date: Sat, 24 Oct 2009 11:38:02 +0100
From: Olivier Fourdan <fourdan@...>
Subject: Re: [Help]: Question about compositing with xfwm4
To: XFCE4 development list <xfce4-dev@...>
Message-ID:
<60f2b0dc0910240338y3e312975yc5a9a59e7323f4c6@...>
Content-Type: text/plain; charset=ISO-8859-1
Hi,
On 10/23/09, andy wang <wandy817@...> wrote:
>> If "xli" sets the root pixmap property XROOTPMAP, xfwm4 can be built
>> to "listen" to the XROOTPMAP property and repaint the background
>> accordingly, you just need to built xfwm4 from sources with
>> MONITOR_ROOT_PIXMAP defined.
>>
>> [....]
> So if I want to make xli works properly with compositor extension, I need to
>
> 1 .change XROOTPMAP property with the root pixmap in xli,
> 2. build xfwm4 with XROOTPMAP
> 3. need a gtk event loop to receive expose event, and repaint the background
> in expose callback function
>
> If there no loop to repaint background, it will fail, am i right? so i
> should to add a event loop to xli source code if i want to
> make xli works properly with compositor feature.
Humm, nope, there is no need tor an event loop at all.
Check this: http://www.eterm.org/docs/view.php?doc=ref#trans
For the XPixmap to be retqined fter xli hqs exited, you need to call
XSetCloseDownMode(display, RetainPermanent) before exiting so that the
resources are not discarded when the connection with the display
closes.
Cheers,
Olivier:
Hi, Olivier
I change the xli source code like Esetroot, and startup xli before xfwm4,
it looks like that the xli could work with xfwm4( with compositor on),
however, if i startup xli after xfwm4 , the desktop background didn't repaint yet.
The background cann't display out. The xli source code like:
1. set_pixmap_property, set "_XROOTPMAP_ID" and "ESETROOT_PMAP_ID" property,
and XSetCloseDownMode(display, RetainPermanent)
2. XSetWindowBackgroundPixmap to root window
3. XClearWindow to clear root window and make xserver to repaint the root window
if i startup xli after xfwm4, it looks like the last step didn't work yet. whether the xserver will send any
messages to xfwm4 when any client clear the root window?
Thanks,
Black
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