Is it possible to set the desktop background image using JavaScript? I'm pretty sure it's not possible but I thought I would check.
If it isn't possible, is there any way for it to be done from the page?
Is it possible to set the desktop background image using JavaScript? I'm pretty sure it's not possible but I thought I would check.
If it isn't possible, is there any way for it to be done from the page?
No, this is not possible (without a browser plugin).
You should just write instructions to the user for how to set an image as their wallpaper.
If that was possible, it would be a serious security issue. Many browser allow the user to right-click an image and select "use as wallpaper" or something similar.
I certainly hope not.
Changing the OS's desktop background requires access to the filesystem. JS doesn't have this, but browser plugins (Java applets, Flash, etc) do, so that's where you'd need to look.