Set Windows 10 wallpaper from PowerShell

set-wallpaper.ps1

function Set-WallPaper {
<#
    .SYNOPSIS

    Applies a specified wallpaper to the current user's desktop
    Reference: https://www.joseespitia.com/2017/09/15/set-wallpaper-powershell-function/

    .PARAMETER Image

    Provide the exact path to the image
 
    .PARAMETER Style

    Provide wallpaper style, one of Fill, Fit, Stretch, Tile, Center, Span
#>
    param (
        [parameter(Mandatory=$True)][string]$Image,
        [parameter(Mandatory=$False)][ValidateSet('Fill', 'Fit', 'Stretch', 'Tile', 'Center', 'Span')][string]$Style
    )

    $WallpaperTile = if ($Style -eq "Tile") {1} else {0}
    $WallpaperStyle = switch ($Style) {
        "Fill"    {"10"}
        "Fit"     {"6"}
        "Stretch" {"2"}
        "Tile"    {"0"}
        "Center"  {"0"}
        "Span"    {"22"}  
    }

    [void](New-ItemProperty -Path "HKCU:\Control Panel\Desktop" -Name WallpaperStyle -PropertyType String -Value $WallpaperStyle -Force)
    [void](New-ItemProperty -Path "HKCU:\Control Panel\Desktop" -Name TileWallpaper -PropertyType String -Value $WallpaperTile -Force)

    Add-Type -TypeDefinition @"
    using System; 
    using System.Runtime.InteropServices;
    public class Params
    {
        [DllImport("User32.dll",CharSet=CharSet.Unicode)] 
        public static extern int SystemParametersInfo(Int32 uAction, Int32 uParam, String lpvParam, Int32 fuWinIni);
    }
"@ 

    $SPI_SETDESKWALLPAPER = 0x0014
    $UpdateIniFile = 0x01
    $SendChangeEvent = 0x02

    $fWinIni = $UpdateIniFile -bor $SendChangeEvent

    [void][Params]::SystemParametersInfo($SPI_SETDESKWALLPAPER, 0, $Image, $fWinIni)
}
 
# Sample use (scuba diver image on Windows 10):
Set-WallPaper -Image "C:\Windows\Web\Wallpaper\Theme1\img2.jpg" -Style Fill