Changing Desktop BackGround on the Fly.

[edain55337]

We have set it up for a certain user to send out messages to our other users via casper. This user has asked if we can make the message more pronounced by changing the desktop pattern of the end-user until they acknowledge the message, which then returns the desktop to it's original background.

I've figured out how to install a desktop background using a policy, using MCX I can change the pattern, however this only works on log in. Has anyone developed a script or a method to do something like this so its more "Active"?

[Wojenski]

I agree - If there were an option for "set once per computer" that would be amazing. Back to the searches i go.

[bentoms]

Which Mac OS?

You can use a AppleScript to set the desktop background.

On 10.9 you can also use a python script.

[gregneagle]

You can use a Python script in earlier OS X releases as well. Both AppleScript and Python are calling the same (or a similar) underlying API.

-Greg

[bentoms]

@gregneagle, I stand corrected.

Was thinking of a python script I saw to edit the SQLite3 db direct.

[gregneagle]

Ah. I assumed you were referring to something along these lines:

https://gist.github.com/gregneagle/6957826

or

http://grahamgilbert.com/blog/2013/10/28/setting-a-desktop-picture-in-mavericks/

[bentoms]

@gregneagle, yep those!

In fact we use your Python script on 10.9 & login.

Pre-10.9 we use MCX.