ISCardCmd::get_ReplyStatusSW1 method

Article
01/07/2021

[The get_ReplyStatusSW1 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_ReplyStatusSW1 method retrieves the reply APDUs SW1 status byte.

Syntax

HRESULT get_ReplyStatusSW1(
  [out] LPBYTE pbySW1
);

Parameters

pbySW1 [out]: Pointer to the byte that contains the value of the SW1 byte on return.

Return value

The method returns one of the following possible values.

Return code	Description
S_OK	Operation completed successfully.
E_INVALIDARG	The pbySW1 parameter is not valid.
E_POINTER	A bad pointer was passed in pbySW1.
E_OUTOFMEMORY	Out of memory.

Remarks

The reply APDU's SW1 status byte is read-only.

To retrieve the reply APDU's SW2 status byte, call get_ReplyStatusSW2.

For a list of all the methods provided by this 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 more information, see Smart Card Return Values.

Examples

The following example shows how to retrieve the SW1 status byte of the reply APDU. The example assumes that pISCardCmd is a valid pointer to an instance of the ISCardCmd interface.

BYTE     bySW1;
HRESULT  hr;

// Retrieve the reply status SW1 byte.
hr = pISCardCmd->get_ReplyStatusSW1(&bySW1);
if (FAILED(hr))
{
  printf("Failed get_ReplyStatusSW1\n");
  // Take other error handling action as needed.
}

Requirements

Requirement	Value
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

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