ISCardCmd::get_ClassId

The get_ClassId method retrieves the class identifier from the APDU.

HRESULT get_ClassId(
  BYTE *pbyClass  
);

Parameters

pbyClass
[out, retval] Pointer to the byte that represents the class identifier.

Return Values

The possible return values are the following:

Value Meaning
S_OK Operation completed successfully.
E_INVALIDARG pbyClass is invalid.
E_POINTER A bad pointer was passed in pbyClass.
E_OUTOFMEMORY Out of memory.

Remarks

To set the class identifier to a new value, call put_ClassId.

For a list of all the methods provided by the ISCardCmd interface, see ISCardCmd.

In addition to the COM error codes listed above, this interface may return a smart card error code if a smart card function was called to complete the request. For information on smart card error codes, see Error Codes.

QuickInfo

  Windows NT: Use version 4.0 SP3 and later.
  Windows: Use Windows 95 OSR2.1.
  Windows CE: Unsupported.
  Header: Declared in scarddat.h.
  Import Library: scarddat.tlb.

See Also

ISCardCmd, put_ClassId