C# 设置桌面壁纸 Desktop wallpaper
public static class Wallpaper { const int SPI_SETDESKWALLPAPER = 20; const int SPIF_UPDATEINIFILE = 0x01; const int SPIF_SENDWININICHANGE = 0x02; [DllImport("user32.dll", CharSet = CharSet.Auto)] static extern int SystemParametersInfo(int uAction, int uParam, string lpvParam, int fuWinIni); public enum Style : int { Fill, Fit, Span, Stretch, Tile, Center } private static void SetWallPaper(string wpaper, Style style) { using (RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Control Panel\Desktop", true)) { if (style == Style.Fill) { key.SetValue(@"WallpaperStyle", 10.ToString()); key.SetValue(@"TileWallpaper", 0.ToString()); } if (style == Style.Fit) { key.SetValue(@"WallpaperStyle", 6.ToString()); key.SetValue(@"TileWallpaper", 0.ToString()); } if (style == Style.Span) // Windows 8 or newer only! { key.SetValue(@"WallpaperStyle", 22.ToString()); key.SetValue(@"TileWallpaper", 0.ToString()); } if (style == Style.Stretch) { key.SetValue(@"WallpaperStyle", 2.ToString()); key.SetValue(@"TileWallpaper", 0.ToString()); } if (style == Style.Tile) { key.SetValue(@"WallpaperStyle", 0.ToString()); key.SetValue(@"TileWallpaper", 1.ToString()); } if (style == Style.Center) { key.SetValue(@"WallpaperStyle", 0.ToString()); key.SetValue(@"TileWallpaper", 0.ToString()); } } SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, wpaper, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE); } }
传入图片路径即可