Saving the current Wallpaper

Hi all!

 

Is there a way to retrieve and save the current Wallpaper into a picture file? Cuz I've made this app to retrive pics from the net and assign them as wallpapers. And when I get a new picture and assign it as a wallpaper, the current one vanishes. So I want to save the current (via the app) before setting a new one.

Language: C#

 

(The app is attached, if anyone is interested)

 

Thanks!