MJPEG-Stream in Powershell-Form darstellen

$user="user"  
$pw="password"  
$url='http://IP:PORT/?action=snapshot'  


function GenerateForm {
    Add-Type -A System.Windows.Forms
    Add-Type -A System.Drawing
    $wc = New-Object System.Net.WebClient



    $credCache = new-object System.Net.CredentialCache
    $creds = new-object System.Net.NetworkCredential($user,$pw)
    $credCache.Add($url, "Basic", $creds)  
    $wc.Credentials = $credCache

    $timer = New-Object System.Windows.Forms.Timer -P @{
        add_Tick = {
            $ms = [System.IO.MemoryStream]::new($wc.DownloadData($url))
            $box.Image = [System.Drawing.Bitmap]::FromStream($ms)
            $ms.Close
        }
        Interval = 1000
    }
    
    $form = New-Object System.Windows.Forms.Form -P @{
        ClientSize = '640,480'  
        Text = "CAM"  
        add_Activated = {
            $timer.Start()
        }
        add_Closed = {
            $timer.Stop()
            $timer.Dispose()
        }
    }
    
    $box = New-Object System.Windows.Forms.PictureBox -P @{
        Location = '0,0'  
        Dock = 'Fill'  
        SizeMode = 'Zoom'  
    }
    
    $form.Controls.Add($box)
    [void]$form.ShowDialog()
}
GenerateForm