KDE 4 Wallpaper Change Script

[chall32]

Hello,

Trying to put together a script to change wallpaper under Kubuntu KDE4.

Why?

Because I have installed weather-wallpaper (http://mundogeek.net/weather-wallpaper/) and would like to update my wallpaper with the latest wallpaper image generated by the application every hour. I know that the application is supposed to do this itself, but this doesn't work under KDE 4.

Yes I could submit a bug to the author (and probably will do), but I would like learn how to script something for myself in the meantime...

Looked at:

dcop kdesktop KBackgroundIface setWallpaper /tmp/wallpaper1.png

but get "object not accessible for "kdesktop"

Does anyone know how to scriptomatically change wallpaper in Kubuntu KDE4?

[Zorael]

edit: Doh, KDE4, reading comprehension: failed, below poster > me

$ dcop kdesktop KBackgroundIface setWallpaper <desktop number> "path to background" <mode number>

$ dcop kdesktop KBackgroundIface setWallpaper 1 "/usr/share/default_blue.jpg" 6

1 seems to be wallpaper disabled, only background color
2 seems to be wallpaper tiled with first image in top left corner
3 seems to be wallpaper tiled with first image centered
4 seems to be wallpaper centered stretched with proportions kept until one side hits screen, space filled by background color
5 seems to be same as 4, though wallpaper aligned to top left and space after stretching filled by tiling
6 seems to be wallpaper stretched to fit screen (what we all use, hm?)

[.nedberg]

dcop has changed to dbus in KDE4

Try with to issue 'qdbus' (or is it just dbus, not at home atm) in a terminal and see the choices you have.

[chall32]

edit: Doh, KDE4, reading comprehension: failed, below poster > me

LOL no worries.

dcop has changed to dbus in KDE4

Try with to issue 'qdbus' (or is it just dbus, not at home atm) in a terminal and see the choices you have.

Here's the output:

chris@d600:~$ qdbus
:1.1
org.kde.klauncher
:1.10
org.freedesktop.ScreenSaver
org.kde.krunner
org.kde.screensaver
:1.12
org.kde.plasma
:1.14
org.kde.kaccess
:1.16
org.kde.kmix
:1.2
org.kde.NepomukServer
org.kde.kded
:1.20
:1.21
org.kde.klipper
:1.23
:1.24
org.kde.konsole
:1.26
:1.6
org.kde.ksmserver
org.kde.ksmserver-5898
:1.7
org.kde.kwin
org.kde.kwin-5908
:1.8
org.kde.knotify
org.freedesktop.DBus
chris@d600:~$

org.kde.plasma looks like a potential winner to me (my limited knowledge is showing again) could be wrong thou..

[.nedberg]

Still not at home...

try

qdbus org.kde.plasma

it will give you some more choices... Keep going till you find the right one.

[pwn2king]

I think I have hit on the right forum; I need some help w/removing images from the background folder, the system one, not the pictures in the active wallpaper folder. There is an image there that I don’t want, I don’t know if it came by default, ( I don’t think so), or if it came with one of the themes, but it’s not quite the thing to have on when the boss comes by. I tried to delete it, and it won’t allow it, I tried to open, then remove, and it won’t allow that either, thanks for your help.

[chall32]

I have found this:

method void org.kde.plasma.App.initializeWallpaper()

But running:

qdbus org.kde.plasma /MainApplication org.kde.plasma.App.initializeWallpaper

doesn't do anything It just returns me to the console prompt (after a line feed)

Have also installed qdbusviewer which is helping me find the correct setting.. Shame qdbusviewer doesn't have a search function!

[chall32]

hmm kinda confused now. The more I look at this the more confused i get...

[.nedberg]

I had a look at it, could not find anything useable. Sorry!

I found a file, ~/.kde4/share/config/plasma-applets (I think the name was), it had a reference to the wallpaper. I tried changing that to something else and refresh the desktop, but the wallpaper did not change.

[Crinos512]

Where can I find the current wallpaper for KDE4?

(I can chop it out of a file if it isn't accessable through DBus.)