SCardForgetCardTypeW function (winscard.h)

Article
02/22/2024

The SCardForgetCardType function removes an introduced smart card from the smart card subsystem.

Syntax

LONG SCardForgetCardTypeW(
  [in] SCARDCONTEXT hContext,
  [in] LPCWSTR      szCardName
);

Parameters

[in] hContext

Handle that identifies the resource manager context. The resource manager context is set by a previous call to SCardEstablishContext. This parameter cannot be NULL.

[in] szCardName

Display name of the card to be removed from the smart card database.

Return value

This function returns different values depending on whether it succeeds or fails.

Return code	Description
Success	SCARD_S_SUCCESS.
Failure	An error code. For more information, see Smart Card Return Values.

Remarks

This function is not redirected, but calling the function SCardForgetCardType when inside a Remote Desktop session will not result in an error. It only means that the result will be from the remote computer instead of the local computer.

The SCardForgetCardType function is a database management function. For more information about other database management functions, see Smart Card Database Management Functions.

Examples

The following example removes the specified card type from the system. The example assumes that lReturn is a valid variable of type LONG, that hContext is a valid handle received from a previous call to the SCardEstablishContext function, and that "MyCardName" was previously introduced by a call to the SCardIntroduceCardType function.


lReturn = SCardForgetCardType(hContext, 
                              L"MyCardName");
if ( SCARD_S_SUCCESS != lReturn )
    printf("Failed SCardForgetCardType\n");

Note

The winscard.h header defines SCardForgetCardType as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	winscard.h
Library	Winscard.lib
DLL	Winscard.dll

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