PS: Set Wallpaper W10

1 minute read

Description:

Use the following to set your wallpaper using Powershell

To Resolve:

1a. The internet will tell you to do:

Set-ItemProperty -path 'HKCU:\Control Panel\Desktop' -Name Wallpaper -Value "c:\mypic.jpg"
rundll32.exe user32.dll, UpdatePerUserSystemParameters, 1, True

… But this doesn’t take affect until after a reboot – Gross!

  1. Use this instead:
Function Set-Wallpaper
{
	Param
	(
		[String]$Path
	)
	Add-Type @"
using System;
using System.Runtime.InteropServices;
using Microsoft.Win32;
namespace Wallpaper
{
public enum Style : int
{
Tile, Center, Stretch, NoChange
}
public class Setter {
public const int SetDesktopWallpaper = 20;
public const int UpdateIniFile = 0x01;
public const int SendWinIniChange = 0x02;
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
private static extern int SystemParametersInfo (int uAction, int uParam, string lpvParam, int fuWinIni);
public static void SetWallpaper ( string path, Wallpaper.Style style ) {
SystemParametersInfo( SetDesktopWallpaper, 0, path, UpdateIniFile | SendWinIniChange );
RegistryKey key = Registry.CurrentUser.OpenSubKey("Control Panel\\Desktop", true);
switch( style )
{
case Style.Stretch :
   key.SetValue(@"WallpaperStyle", "2") ; 
   key.SetValue(@"TileWallpaper", "0") ;
   break;
case Style.Center :
   key.SetValue(@"WallpaperStyle", "1") ; 
   key.SetValue(@"TileWallpaper", "0") ; 
   break;
case Style.Tile :
   key.SetValue(@"WallpaperStyle", "1") ; 
   key.SetValue(@"TileWallpaper", "1") ;
   break;
case Style.NoChange :
   break;
}
key.Close();
}
}
}
"@

	[Wallpaper.Setter]::SetWallpaper( $Path, 1 )
	# 0 = Tile; 1 = Center; 2 = Stretch; 3 = No Change
}
Set-Wallpaper -Path "c:\mypic.jpg"