Windows 7 Wallpaper

Question

How to install Windows 7 Wallpaper slideshow with software?

Customize regular wallpapers

[DllImport("user32.dll", CharSet = CharSet.Auto)] private static extern Int32 SystemParametersInfo(UInt32 uiAction, UInt32 uiParam, String pvParam, UInt32 fWinIni); private static UInt32 SPI_SETDESKWALLPAPER = 20; private static UInt32 SPIF_UPDATEINIFILE = 0x1; public void SetImage(string filename) { SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, filename, SPIF_UPDATEINIFILE); } 

What I have found so far:

There is a built-in file for slide shows in

C: \ Users \ CurrentUser \ AppData \ Roaming \ Microsoft \ Windows \ Themes \

Wallpaper during the slide show should be in the following folder:

C: \ Users \ CurrentUser \ AppData \ Roaming \ Microsoft \ Windows \ Themes \ TranscodedWallpaper.jpg

(during a slide show, the file changes automatically)

Answer 1

try it

 public sealed class Wallpaper { 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 { Tiled, Centered, Stretched } public static void Set(Uri uri, Style style) { System.IO.Stream s = new System.Net.WebClient().OpenRead(uri.ToString()); System.Drawing.Image img = System.Drawing.Image.FromStream(s); string tempPath = Path.Combine(Path.GetTempPath(), "wallpaper.bmp"); img.Save(tempPath, System.Drawing.Imaging.ImageFormat.Bmp); RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Control Panel\Desktop", true); if (style == Style.Stretched) { key.SetValue(@"WallpaperStyle", 2.ToString()); key.SetValue(@"TileWallpaper", 0.ToString()); } if (style == Style.Centered) { key.SetValue(@"WallpaperStyle", 1.ToString()); key.SetValue(@"TileWallpaper", 0.ToString()); } if (style == Style.Tiled) { key.SetValue(@"WallpaperStyle", 1.ToString()); key.SetValue(@"TileWallpaper", 1.ToString()); } SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, tempPath, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE); } } 

The original subject: this