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This code is used to wait for card removal. The smart card reader driver's XXX_IOControl function either returns immediately with STATUS_SUCCESS, which indicates that no card is in the reader, or it blocks until the card is removed.
One of the following status values:
|STATUS_SUCCESS||There is no smart card in the card reader.|
|STATUS_CANCELLED||The card reader was closed or the IOCTL_SMARTCARD_CANCEL_BLOCKING code was issued.|
|STATUS_DEVICE_BUSY||Event tracking is already active.|
|STATUS_INVALID_DEVICE_STATE||The card reader cannot accept the request.|
Note: Smart card reader drivers return Windows NT status values, rather than Win32 error values, as the return values from the driver's callback function.
See also IOCTL_SMARTCARD_CANCEL_BLOCKING.
Last updated on Tuesday, July 13, 2004