get clipboard image on windows

main.js

const execa = require('execa')
const path = require('path')
const fs = require('fs')


async function main() {

  const scriptPath = path.join(__dirname, 'pc.ps1');
  const imagePath = path.resolve(__dirname, 'clipboard.png')
  try {

    let command = "C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe";
    command = fs.existsSync(command) ? command : 'powershell'

    const { stdout } = await execa(command, [
      '-noprofile',
      '-noninteractive',
      '-nologo',
      '-sta',
      '-executionpolicy', 'unrestricted',
      '-windowstyle', 'hidden',
      '-file', scriptPath,
      imagePath
    ], {
    });

    return {
      noImage: stdout === 'no image',
      fsPath: stdout
    }
  } catch (err) {
    if (err.code === 'ENOENT') {
      console.error('Failed to execute powershell')
    }
  }
}
main()

pc.ps1

param($imagePath)

# Adapted from https://github.com/octan3/img-clipboard-dump/blob/master/dump-clipboard-png.ps1

Add-Type -Assembly PresentationCore
$img = [Windows.Clipboard]::GetImage()

if ($img -eq $null) {
    "no image"
    Exit 
}

if (-not $imagePath) {
    "no image"
    Exit
}

$fcb = new-object Windows.Media.Imaging.FormatConvertedBitmap($img, [Windows.Media.PixelFormats]::Rgb24, $null, 0)
$stream = [IO.File]::Open($imagePath, "OpenOrCreate")
$encoder = New-Object Windows.Media.Imaging.PngBitmapEncoder
$encoder.Frames.Add([Windows.Media.Imaging.BitmapFrame]::Create($fcb)) | out-null
$encoder.Save($stream) | out-null
$stream.Dispose() | out-null

$imagePath