T38 wallpaper change

[cptjack]

I have been playing around with dynamic (random) wallpapers and screensavers. I stumbled upon this thread.

In my y000000000038.cfg I have these 4 lines to (p)reload each wallpaper when provisioning/booting:
wallpaper_upload.url = http://server/wall01.jpg
wallpaper_upload.url = http://server/wall02.jpg
wallpaper_upload.url = http://server/wall03.jpg
wallpaper_upload.url = http://server/wall04.jpg
Existing images get updated/overwritten when the cfg is loaded.

I didn't find an option to change the phone_setting.backgrounds value using Push XML. It seems PhoneConfiguration can only change the options of programmable keys.

An option would be to store the selected value in a database and trigger a reboot or wait for the next auto-provisioning cycle to update the phone_setting.backgrounds value. This would be however far from an elegant solution to your question. If there is a way to trigger a provisioning cycle it should work almost as requested...

The 4 wallpapers can still be chosen manually using the Menu -> Display options, this is however requires navigation to the appropriate the Menu. If that's an acceptable solution for you?

Another option is to keep phone_setting.backgrounds=Config:wallpaper.jpg fixed in the cfg and only load the appropriate Wallpaper when provisioning.
I have a .htaccess that redirects all wallpaper.jpg HTTP requests to a PHP script. It is then up to the script to serve the correct wallpaper image to be stored on the phone.