ScanBarcode mode$, format$, contents$
This command starts the ZXing Barcode reader app and scans a barcode. The ZXing Barcode reader is a free app that must be installed for barcode scanning to work. ZXing can be found on the Google Android Market (Play).
The mode$ parameter specifies the type of bar code to be scanned. It can be one of the following values:
"PRODUCT_MODE" - used for common product type bar codes.