These functions query the smart card database. They can provide a list of smart cards supplied by a specific user, the interfaces and primary service provider of a specific card, the reader groups defined for the system, and the readers within a set of reader groups.
When using these functions, you can query the complete smart card database, or you can narrow the search by setting the resource manager context. The resource manager context is set by calling SCardEstablishContext) before calling a query function.
Note Without a specified context, some information may still be inaccessible due to security restrictions.
| To… | Call… |
|---|---|
| Retrieve the identifier (GUID) of the primary service provider for the given card. | SCardGetProviderId |
| Retrieve a list of cards previously introduced to the system by a specific user. | SCardListCards |
| Retrieve the identifiers (GUIDs) of the interfaces supplied by a given card. | SCardListInterfaces |
| Retrieve a list of reader groups that have previously been introduced to the system. | SCadListReaderGroups |
| Retrieve the list of readers within a set of named reader groups. | SCardListReaders |