ISCard::LockSCard method

[The LockSCard 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 LockSCard method claims exclusive access to the smart card.

Syntax

HRESULT LockSCard();

Parameters

This method has no parameters.

Return value

The method returns one of the following possible values.

Remarks

In addition to the COM error code 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.

To unlock the smart card, call the ISCard::UnlockSCard method.

Examples

The following example shows acquiring exclusive access to the smart card.

HRESULT    hr;

// Lock the smart card.
hr = pISCard->LockSCard();
if (FAILED(hr))
{
    printf("Failed LockSCard\n");
    // Take error handling action as needed.
}
// Use smart card; unlock the smart card when done.

Requirements

See also

ISCard

UnlockSCard