ISCardCmd::get_LeField method

[The get_LeField method is available for use in the operating systems specified in the Requirements section. It is not available for use in Windows Server 2003 with Service Pack 1 (SP1) and later, Windows Vista, Windows Server 2008, and subsequent versions of the operating system. The Smart Card Modules provide similar functionality.]

The get_LeField method returns the Le field of the application protocol data unit (APDU).

Syntax


HRESULT get_LeField(
  [out] LONG *plSize
);

Parameters

plSize [out]

Pointer to the Le field value on return.

Return value

The method returns one of the following possible values.

Return codeDescription
S_OK

Operation was completed successfully.

E_INVALIDARG

The plSize parameter is not valid.

 

Examples

The following example shows how to retrieve the Le field value from the application protocol data unit (APDU). The example assumes that pISCardCmd is a valid pointer to an instance of the ISCardCmd interface.


LONG     lLe;
HRESULT  hr;

// Retrieve the Le field value.
hr = pISCardCmd->get_LeField(&lLe);
if (FAILED(hr))
{
    printf("Failed get_LeField\n");
    // Take other error handling action.
}
else
    printf("Le field value returned is %d\n", lLe);


Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

End of client support

Windows XP

End of server support

Windows Server 2003

Header

Scarddat.h

Type library

Scarddat.tlb

DLL

Scardssp.dll

IID

IID_ISCardCmd is defined as D5778AE3-43DE-11D0-9171-00AA00C18068

See also

ISCardCmd

 

 

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