Programmatically set the Windows desktop background. Obviously, this is Windows-only. I've only tested it on Windows 7.
You need to have jna-4.3.0.jar and jna-platform-4.3.0.jar in your Additional Libraries folder. https://github.com/java-native-access/jna
You need to have jna-4.3.0.jar and jna-platform-4.3.0.jar in your Additional Libraries folder. https://github.com/java-native-access/jna