ISCard::get_Context method

[The get_Context 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_Context method retrieves the current resource manager context handle. This method returns (*pContext) == NULL if no context has been established.

Syntax

HRESULT get_Context(
  [out] HSCARDCONTEXT *pContext
);

Parameters

pContext [out]

Pointer to the context handle on return.

Return value

The method returns one of the following possible values.

Remarks

The resource manager context is set by calling the smart card function SCardEstablishContext.

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 retrieving the current resource manager context handle.

HSCARDCONTEXT  hCtx;
HRESULT        hr;

// Retrieve the smart card context.
hr = pISCard->get_Context(&hCtx);
if (FAILED(hr))
{
   printf("Failed get_Context\n");
   // Take other error handling action as needed.
}
// Use smart card context as needed.

Requirements

See also

get_Atr

get_CardHandle

get_Protocol

get_Status

ISCard

SCardEstablishContext