C # Set desktop Wallpaper

It is actually calling the system API. The prototype is:

Bool winapi systemparametersinfo (
_ In uint uiaction,
_ In uint uiparam,
_ In_out pvoid pvparam,
_ In uint fwinini
);

 

1 Using System. runtime. interopservices;
//// Declare
2 [Dllimport ( " User32.dll " , Entrypoint =   " Systemparametersinfoa " )]
3 Static   Extern Int32 systemparametersinfo (int32 uaction, int32 uparam, String Lpvparam int32, fuwinini); ///// set lpvparam to string
4 Private   Const   Int Spi_setdeskwallpaper =   20 ;
5
6 Systemparametersinfo (spi_setdeskwallpaper, 0 , Filename, 1 ); // Call. filename is the image address. If the last parameter needs to be set to, it will be changed back to the original one after restart.

At least Vista is successful.