upload screenshots with powershell

KlandScreenshot.ps1

function Upload-ToKland { 
    param([String]$bucket = "",
    [String]$Image,
    [String]$Url = "https://kland.smilebasicsource.com/uploadimage")

    $ImageName = [regex]::Match($Image,"[^\\/]+\.(png|PNG|gif|GIF|jpe?g|JPE?G)").Value
    $Image = [System.Text.Encoding]::GetEncoding("iso-8859-1").GetString([IO.File]::ReadAllBytes($Image))
    $ImageType = [System.Web.MimeMapping]::GetMimeMapping($Image)
    $boundary = [guid]::NewGuid().ToString()

    $PostBody = @"
--$boundary
Content-Disposition: form-data; name="image"; filename="$ImageName"
Content-Type: $ImageType

$Image
--$boundary
Content-Disposition: form-data; name="bucket"

$bucket
--$boundary--
"@
    return Invoke-RestMethod -Method Post -Uri $Url -ContentType "multipart/form-data; boundary=$boundary" -Body $PostBody
}

function Take-Screenshot {
    param([Drawing.Rectangle]$bounds = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds,
    [string]$path = "image.png"
    )

    $BMP = New-Object Drawing.Bitmap $bounds.width, $bounds.height            
    $Graphics = [Drawing.Graphics]::FromImage($BMP)
    $Graphics.CopyFromScreen($bounds.Location, [Drawing.Point]::Empty, $bounds.size)
    $BMP.Save($path, [System.Drawing.Imaging.ImageFormat]::Png)
    $Graphics.Dispose()
    $BMP.Dispose()
    return $path
}

function KlandScreenshot([String]$Bucket) {
    while ([System.Windows.Forms.UserControl]::MouseButtons -eq "None"){}
    $pos1 = [System.Windows.Forms.Cursor]::Position
    while ([System.Windows.Forms.UserControl]::MouseButtons -ne "None"){}
    # wait for mouse release
    while ([System.Windows.Forms.UserControl]::MouseButtons -eq "None"){}
    $pos2 = [System.Windows.Forms.Cursor]::Position
    $region = [Drawing.Rectangle]::new($pos1, $pos2 - $pos1)
    $path = "$env:TEMP\klandimage.png"
    $path = Take-Screenshot -bound $region -path $path
    $file = Upload-ToKland -bucket $Bucket -image $path
    Remove-Item $path
    return $file
}