使用Mono设置桌面墙纸

Question

I have C# code in .NET 3.5 that sets the desktop background in Windows Vista/7. I would like to change my code to be cross-platform Windows/Mac/Linux by tweaking it so that it can run through Mono. The only Interop call in my code is the one to set the wallpaper.

I understand that each platform will require a different method/script for this to work; my plan is to check OS & version and run the appropriate code as needed. So far I've found the following non-mono resources which may help:

• (Mac/Python) How can I programmatically change the background in Mac OS X?
• (Linux/C++) Changing wallpaper on Linux programmatically
• (Linux/Python) How can I change my desktop background with python?

Several of these have answers which appear to include scripts which maybe could be executed using a call to the shell/command line in each environment through code?

How can I change the desktop background using mono in Linux and Mac environments?

Answer 1

Setting the Wallpaper on a Mac with Mono
I've put together a library called AppleScript Slim which is a C# dll that allows you to execute AppleScript from a WinForms (or really any) Mono application. 100% of the code for this project came straight from the Mono Develop source code, I just trimmed and repackaged the pieces I needed.

AppleScript Slim: https://applescriptslim.codeplex.com/

Here is the sample code on how to set the wallpaper using AppleScript I developed (and which works great):

string applScript =
@"set theUnixPath to POSIX file ""{0}"" as text 
tell application ""Finder"" 
set desktop picture to {{theUnixPath}} as alias 
end tell";

MonoDevelop.MacInterop.AppleScript.Run(string.Format(applScript, localPath));

Setting the Wallpaper on Ubuntu with Mono (Work in Progress, I plan to use portions of the GCONF library for Mono as discussed in the question comments, haven't had the chance to try it yet)