Provides the ability to view a QR code image for the web URL associated with the current control page.
note: A QR code is a type of two dimension barcode that is often used to encode the URL for a web page. If you scan one of these QR codes using a suitable application on a mobile device, a web browser opens and displays the web page. The intent of providing QR code images for web control pages is to allow easy navigation to the pages using a mobile device that can connect to the HAL web server.