Displays a random cat picture from TheCatApi

Show-Cats

function Show-Cat
{
    if($psversiontable.psversion.major -lt 3)
    {
        Write-Host 'Cats are only available on Powershell Version 3 or later'
        return
    }
    [void][Reflection.Assembly]::LoadWithPartialName('System.Windows.Forms')
    $proxy = [System.Net.WebRequest]::GetSystemWebproxy().GetProxy('http://thecatapi.com/')
    $settings = @{}
    if($proxy.AbsoluteUri -ne 'http://thecatapi.com/')
    {
        $Settings['ProxyUseDefaultCredentials'] = $true
        $Settings['Proxy'] = $proxy.AbsoluteUri
    }
    $request = Invoke-WebRequest -Uri 'http://thecatapi.com/api/images/get' -Method get @Settings
    $webImg = Invoke-WebRequest -Uri $request.BaseResponse.ResponseUri.AbsoluteUri -Method get @Settings
    $stream = New-Object System.IO.MemoryStream (,$webImg.Content)
    $img = [System.Drawing.Image]::FromStream($stream)
    $Form = New-Object Windows.Forms.Form
    $Form.Text = 'Cats!'
    $Form.Width = $img.Size.Width
    $Form.Height = $img.Size.Height
    $pictureBox = New-Object Windows.Forms.PictureBox
    $pictureBox.Width = $img.Size.Width
    $pictureBox.Height = $img.Size.Height

    $pictureBox.Image = $img
    
    $Form.Controls.Add($pictureBox)
    $Form.Add_Shown( { $Form.Activate() } )
    [void]$Form.ShowDialog()
}