function showCapture($owner) {
    $form = New-Object System.Windows.Forms.Form
    $form.Owner = $owner
    $form.icon = $icon
    $form.Text = "Capturar"
    $form.Width = 445
    $form.Height = 220
    $form.AutoSize = $true
    $form.StartPosition = [System.Windows.Forms.FormStartPosition]::CenterParent
    $form.Font = "Microsoft Sans Serif, 9.35"
    $form.FormBorderStyle = 'FixedDialog'


    $label_url = New-Object System.Windows.Forms.Label
    $label_url.Text = "URL:"
    $label_url.AutoSize = $true
    $label_url.Location = New-Object System.Drawing.Point(20, 23)
    
    $text_url = New-Object System.Windows.Forms.TextBox
    $text_url.Width = 333
    $text_url.Location = New-Object System.Drawing.Point(75, 20)
    $text_url.add_DoubleClick({
            $text_url.SelectAll();
        })
    $form.Controls.Add($label_url)
    $form.Controls.Add($text_url)

    $label_dest = New-Object System.Windows.Forms.Label
    $label_dest.Text = "Destino:"
    $label_dest.AutoSize = $true
    $label_dest.Location = New-Object System.Drawing.Point(20, 58)

    $text_dest = New-Object System.Windows.Forms.TextBox
    $text_dest.Text = $def_dest_dir
    $text_dest.Width = 255
    $text_dest.Location = New-Object System.Drawing.Point(75, 55)
    $text_dest.add_DoubleClick({
            $text_dest.SelectAll();
        })

    $btn_dest = New-Object System.Windows.Forms.Button
    $btn_dest.Text = "Examinar"
    $btn_dest.AutoSize = $true
    $btn_dest.Location = New-Object System.Drawing.Point(335, 53)
    $btn_dest.Add_Click({    
            $dest = selectFolder -path $def_dest_dir
            if ($dest) {
                $text_dest.Text = $dest
            }
        })
    $form.Controls.Add($label_dest)
    $form.Controls.Add($text_dest)
    $form.Controls.Add($btn_dest)



    $label_name = New-Object System.Windows.Forms.Label
    $label_name.Text = "Nombre:"
    $label_name.AutoSize = $true
    $label_name.Location = New-Object System.Drawing.Point(20, 93)
    
    $text_name = New-Object System.Windows.Forms.TextBox
    $text_name.Text = "Captura - $(Get-Date -Format "yyyy-MM-dd HH.mm")"
    $text_name.Width = 333
    $text_name.Location = New-Object System.Drawing.Point(75, 90)
    $text_name.add_TextChanged({
            removeInvalidChars -textbox $text_name
        })
    $text_name.add_DoubleClick({
            $text_name.SelectAll();
        })
    $text_name.Add_KeyDown({
            if ($_.KeyCode -eq "Enter") {
                $btn_rec.PerformClick()
            }
        })
    $form.Controls.Add($label_name)
    $form.Controls.Add($text_name)

    function finish { 
        $buttonTimer.Dispose() 

        if ($null -ne $curr_process) {
            taskkill -pid $curr_process.Id
            $global:curr_process = $null
        }

        $btn_stop.Width = 0
        $btn_stop.Height = 0
        $btn_rec.Width = 150
        $btn_rec.Height = 30

        printLog
    }
  
    # El evento process.exited no funciona, por eso uso un timer para cambiar el boton
    # https://github.com/PowerShell/PowerShell/issues/8000#issuecomment-542412046
    $buttonTimer = [System.Windows.Forms.Timer]::new()
    $buttonTimer.Interval = 1000
    $buttonTimer.Add_Tick({
        if ($null -ne $curr_process -and $curr_process.HasExited) {
            finish
        }
    })

    $btn_rec = New-Object System.Windows.Forms.Button
    $btn_rec.Text = "Capturar"
    $btn_rec.Location = New-Object System.Drawing.Point(140, 135)
    $btn_rec.Width = 150
    $btn_rec.Height = 30
    $btn_rec.Add_Click({   
            try {
                $prevCode = startAlwaysOn
                capture -url $text_url.Text -out "$($text_dest.Text)\$($text_name.Text)"
            }
            finally {
                endAlwaysOn -code $prevCode
            }
            
            if ($null -ne $curr_process) {
                $btn_stop.Width = 150
                $btn_stop.Height = 30
                $btn_rec.Width = 0
                $btn_rec.Height = 0

                $buttonTimer.Start()
            }
        })

    $btn_stop = New-Object System.Windows.Forms.Button
    $btn_stop.Text = "Detener"
    $btn_stop.Location = New-Object System.Drawing.Point(140, 135)
    $btn_stop.Width = 0
    $btn_stop.Height = 0
    $btn_stop.Add_Click({
            finish
        })

    $form.Controls.Add($btn_rec)
    $form.Controls.Add($btn_stop)
    $text_url.Select()


    $form.Add_Closing({
            finish
            $owner.Location = getRelativeLocation -parent $owner -child $form
            $form.Hide()
            $owner.Show()
        })
        
    [PSAppID]::SetAppIdForWindow($form.handle, "$($metadata.package).$app_name")

    $form.Add_LocationChanged({ $global:win_loc = $form.Location })
    $form.Add_Resize({          $global:win_size = $form.Size })

    $form.MaximizeBox = $false
    $form.ShowDialog()
}