;居中   TileWallpaper = 0 WallpaperStyle = 0  （默认）  
;填充 TileWallpaper = 1   WallpaperStyle = 0  
;拉伸   TileWallpaper = 1 WallpaperStyle = 2  
RegWrite("HKEY_CURRENT_USER\Control Panel\Desktop","TileWallpaper","REG_SZ", 0)  
RegWrite("HKEY_CURRENT_USER\Control Panel\Desktop","WallpaperStyle","REG_SZ", 2)  
  
$Bmp = @ScriptDir&"\meinv1-175.jpg"  
DllCall("user32.dll","int","SystemParametersInfo", "int",20,"int",1,"str",$Bmp,"int",1 )  
;DllCall("SystemParametersInfo", UInt, 0x14, UInt, 0, Str, A_WinDir . "\winnt.bmp", UInt, 2)   

	;设置桌面背景墙纸，SystemParametersInfo(20, True, 图片路径, 1)