![]() ![]() The SCARD_CARD_CAPABILITIES structure declaration defines the data that is stored in the CardCapabilites member of the SMARTCARD_EXTENSION structure and holds all information that is specific to the particular smart card that is currently used. The PTS_DATA structure is used for protocol type selection (PTS). The OS_DEP_DATA structure defines the data that is stored in the OsData member of the SMARTCARD_EXTENSION structure, which holds smart card information that is specific to the operating system. The CLOCK_RATE_CONVERSION structure holds a value that determines the duration of a bit of data and the corresponding maximum operating frequency that accompanies the indicated bit length. The SMARTCARD_EXTENSION structure is used by both the smart card reader driver and the smart card driver library to access all other smart card data structures. ![]() The IOCTL_SMARTCARD_SWALLOW request causes the smart card reader to swallow the card. The IOCTL_SMARTCARD_GET_LAST_ERROR request retrieves the error code of the most previous operation because there is no option to return an error code immediately after an overlapped operation is complete. The IOCTL_SMARTCARD_EJECT request ejects the currently inserted smart card from the smart card reader. To develop Smartcard device drivers, you need these headers:įor the programming guide, see Smartcard device drivers. Overview of the Smartcard device drivers technology.
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