'Re: [PyKDE] DCOP From Cron'

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List:       pykde
Subject:    Re: [PyKDE] DCOP From Cron
From:       Richard Heck <rgheck () comcast ! net>
Date:       2006-06-20 18:28:27
Message-ID: 44983E4B.9070906 () comcast ! net
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Jim Bublitz wrote:
> On Tuesday 20 June 2006 08:49, Richard Heck wrote:
>   
>> İsmail Dönmez wrote:
>>     
>>> Salı 20 Haziran 2006 17:19 tarihinde, Richard Heck şunları yazmıştı:
>>>       
>>>> I'm writing a simple application to rotate wallpaper every so often, and
>>>> I want to run it as a cron job. The basic structure is pretty simple,
>>>> and it works fine if I run it in a shell under KDE. But when I run it as
>>>> a cron job, it does not connect to the DCOP server. Is there some way to
>>>> tell the script which DCOP server to connect to?
>>>>         
>>> Maybe try dcop --user $username .
>>>       
>> Sorry, that wasn't clear. The program I'm writing is in Python.
>>     
> Yes, but it should be running under cron as the same user you're testing it as 
> (the user who owns the display and is running KDE).
>
> Your application should be based on KApplication, and can use 
> KApplication.dcopClient() to connect to the DCOP server.
>   
Here is the relevant part of the application as it presently exists:

#Create DCOP clients
import kdecore
import dcopext
dcopclient = kdecore.KApplication.dcopClient()
dcopclient.registerAs("changewp")
dcopapp = dcopext.DCOPApp("kdesktop", dcopclient)

and then later we have things like:

dcopapp.KBackgroundIface.setWallpaper(...)

As said, if I run this from a konsole under KDE, it works fine. But if I
CTRL-ALT-F1 and open a terminal outside KDE, then it doesn't work,
despite the fact that I'm running as the same user.

Here's a simple test program:

#/usr/bin/python
#Create DCOP clients
import kdecore
import dcopext
dcopclient = kdecore.KApplication.dcopClient()
dcopclient.registerAs("changewp")
dcopapp = dcopext.DCOPApp("kdesktop", dcopclient)
print dcopapp.KBackgroundIface.currentWallpaper(1)[1]

If I run that from a konsole, I get e.g.
/usr/share/wallpapers/default_gears.jpg. But if I run it from a virtual
terminal, I get: None. And again: I'm the same user both times.

Richard

Richard

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Jim Bublitz wrote:
<blockquote cite="mid200606201014.23450.jbublitz@nwinternet.com"
 type="cite">
  <pre wrap="">On Tuesday 20 June 2006 08:49, Richard Heck wrote:
  </pre>
  <blockquote type="cite">
    <pre wrap="">İsmail Dönmez wrote:
    </pre>
    <blockquote type="cite">
      <pre wrap="">Salı 20 Haziran 2006 17:19 tarihinde, Richard Heck \
şunları yazmıştı:  </pre>
      <blockquote type="cite">
        <pre wrap="">I'm writing a simple application to rotate wallpaper \
every so often, and I want to run it as a cron job. The basic structure is \
pretty simple, and it works fine if I run it in a shell under KDE. But when \
I run it as a cron job, it does not connect to the DCOP server. Is there \
some way to tell the script which DCOP server to connect to?
        </pre>
      </blockquote>
      <pre wrap="">Maybe try dcop --user $username .
      </pre>
    </blockquote>
    <pre wrap="">Sorry, that wasn't clear. The program I'm writing is in \
Python.  </pre>
  </blockquote>
  <pre wrap=""><!---->Yes, but it should be running under cron as the same \
user you're testing it as  (the user who owns the display and is running \
KDE).

Your application should be based on KApplication, and can use 
KApplication.dcopClient() to connect to the DCOP server.
  </pre>
</blockquote>
Here is the relevant part of the application as it presently exists:<br>
<pre>#Create DCOP clients
import kdecore
import dcopext
dcopclient = kdecore.KApplication.dcopClient()
dcopclient.registerAs("changewp")
dcopapp = dcopext.DCOPApp("kdesktop", dcopclient)
</pre>
and then later we have things like:<br>
<pre>dcopapp.KBackgroundIface.setWallpaper(...)
</pre>
As said, if I run this from a konsole under KDE, it works fine. But if
I CTRL-ALT-F1 and open a terminal outside KDE, then it doesn't work,
despite the fact that I'm running as the same user.<br>
<br>
Here's a simple test program:<br>
<pre>#/usr/bin/python
#Create DCOP clients
import kdecore
import dcopext
dcopclient = kdecore.KApplication.dcopClient()
dcopclient.registerAs("changewp")
dcopapp = dcopext.DCOPApp("kdesktop", dcopclient)
print dcopapp.KBackgroundIface.currentWallpaper(1)[1]
</pre>
If I run that from a konsole, I get e.g. \
<tt>/usr/share/wallpapers/default_gears.jpg</tt>. But if I run it from a \
                virtual terminal, I get: <tt>None</tt>. And
again: I'm the same user both times.<br>
<br>
Richard<br>
<br>
Richard<br>
<br>
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