DS CWA 16374-17:2012 Extensions For Financial Services (Xfs) Interface Specification Release 3.20 - Part 17: Barcode Reader Device Class Interface Programmer's Reference Explains the functionality of a Barcode Reader (BCR) Service Provider. Also defines the service-specific commands that can be issued to the Service Provider using the WFSGetInfo, WFSAsyncGetInfo, WFSE