public static void NextWallpaper()
{
DesktopWallpaper.IDesktopWallpaper wallpaper = DesktopWallpaper.WallpaperWrapper.GetWallpaper();
Console.Out.WriteLine("Mon amount: " + wallpaper.GetMonitorDevicePathCount());
string monitor = wallpaper.GetMonitorDevicePathAt(0);
Console.Out.WriteLine("mon id: " + monitor);
wallpaper.AdvanceSlideshow(null, DesktopWallpaper.DesktopSlideshowDirection.Forward);
Marshal.ReleaseComObject(wallpaper);
}
public static void SetWallpaper(uint id, string path)
{
DesktopWallpaper.IDesktopWallpaper wallpaper = DesktopWallpaper.WallpaperWrapper.GetWallpaper();
if (id <= wallpaper.GetMonitorDevicePathCount())
{
string monitor = wallpaper.GetMonitorDevicePathAt(id);
wallpaper.SetWallpaper(monitor, path);
}
Marshal.ReleaseComObject(wallpaper);
}