🌈️ apply a wallpaper based on the weather outside
fix(apply): fix Windows script
Angel Wang
(Jun 23, 2026, 1:56 AM -0600)
60191fb6
53a0dae2
+30
-23
+18
-21
src/utils.ts
+18
-21
src/utils.ts
···
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if (!fs.statSync(windowsApplyScriptPath, { throwIfNoEntry: false })) {
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// C# in TypeScript. who would've thought
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// uiAction: SPI_SetDeskWallpaper = 0x0014 = 20
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// uiParam: unused = 0
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// pvParam: path to the image
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// fWinIni: SPIF_SENDCHANGE (update user profile + broadcast setting change) = 0x02 = 2
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-
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const command = `
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$imagePath = $args[0]
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$code = @'
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using System.Runtime.InteropServices;
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namespace Win32 {
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public class Wallpaper {
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[DllImport("user32.dll", CharSet=CharSet.Auto)]
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static extern int SystemParametersInfoA(int uiAction, int uiParam, string pvParam, int fWinIni);
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public static void SetWallpaper(string imagePath){
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SystemParametersInfo(20, 0, imagePath, 2);
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}
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}
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}
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'@
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$imagePath = $args[0]
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$setwallpapersrc = @"
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using System.Runtime.InteropServices;
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public class wallpaper {
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public const int SetDesktopWallpaper = 20;
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public const int UpdateIniFile = 0x01;
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public const int SendWinIniChange = 0x02;
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add-type $code
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[Win32.Wallpaper]::SetWallpaper($imagePath)
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[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
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private static extern int SystemParametersInfo (int uAction, int uParam, string lpvParam, int fuWinIni);
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+
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public static void SetWallpaper (string path) {
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SystemParametersInfo(SetDesktopWallpaper, 0, path, UpdateIniFile | SendWinIniChange);
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}
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}
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"@
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Add-Type -TypeDefinition $setwallpapersrc
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[wallpaper]::SetWallpaper("$imagePath")
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`
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await fs.writeFile(windowsApplyScriptPath, command)
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console.info(`Wrote Windows wallpaper apply script at ${windowsApplyScriptPath}!`)
+12
-2
src/apply/index.ts
+12
-2
src/apply/index.ts
···
1
1
import type { ImageAnalysisData } from "../analyze/analysis.ts"
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import { applyConfigPath, cachePath, chalkDebug, loadConfig, map, mapEaseOutExp, mapEaseOutQuint, windowsApplyScriptPath } from "../utils.ts"
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import {
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applyConfigPath,
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cachePath,
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chalkDebug,
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loadConfig,
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map,
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mapEaseOutExp,
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mapEaseOutQuint,
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windowsApplyScriptPath,
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} from "../utils.ts"
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import { type ApplicationConfig, defaultConfig, findMatchingImages, getOpenMeteoData } from "./application.ts"
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import * as SunCalc from "suncalc"
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import "zx/globals"
···
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if (Deno.build.os != "windows") {
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await $`eval ${config.applyWallpaperCommand.replace("%s", targetImage.path)}`
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} else {
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await $`pwsh ${windowsApplyScriptPath}`
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const command = new Deno.Command(`pwsh`, { args: [ windowsApplyScriptPath, targetImage.path ], stdout: "piped" } )
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command.spawn()
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}
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console.info(`Success! Enjoy :)`)