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  • 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 PanelDesktop", 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

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  • 原文地址:https://www.cnblogs.com/xyz0835/p/9277609.html
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