SCardReconnect
A version of this page is also available for
4/8/2010
This function re-establishes an existing connection between the calling application and a smart card. The function moves a card handle from direct access to general access, or acknowledges and clears an error condition that is preventing further access to the card.
Syntax
LONG SCardReconnect(
SCARDHANDLE hCard,
DWORD dwShareMode,
DWORD dwPreferredProtocols,
DWORD dwInitialization,
LPDWORD pdwActiveProtocol
);
Parameters
- hCard
[in] Handle to the reference value obtained from a previous call to SCardConnect.
dwShareMode
[in] Specifies a flag that indicates whether other applications can form connections to this card. The following table shows the possible values for dwShareMode.Value Description SCARD_SHARE_EXCLUSIVE
This application will not share this card with other applications.
dwPreferredProtocols
[in] Supplies a bit mask of acceptable protocols for this connection. The following table shows the possible values, which may be combined with the OR operation, for dwPreferredProtocols.Value Description SCARD_PROTOCOL_T0
T=0 is an acceptable protocol.
SCARD_PROTOCOL_T1
T=1 is an acceptable protocol.
dwInitialization
[in] Specifies the kind of initialization to perform on the card. The following table shows the possible values for dwInitialization.Value Description SCARD_LEAVE_CARD
Do not do anything special on reconnect.
SCARD_RESET_CARD
Reset the card (warm reset).
SCARD_UNPOWER_CARD
Power down the card and reset it (cold reset).
pdwActiveProtocol
[out] Pointer that specifies a flag indicating the established active protocol. The following table shows the possible values for pdwActiveProtocol.Value Description SCARD_PROTOCOL_T0
T=0 is the active protocol.
SCARD_PROTOCOL_T1
T=1 is the active protocol.
Return Value
The following table shows the possible return values.
| Value | Description |
|---|---|
SCARD_S_SUCCESS |
Succeeds |
An error value (see Smart Card Error Values for a list of all error values). |
Fails |
Remarks
SCardReconnect is a smart card and reader access function.
Requirements
| Header | winscard.h |
| Library | winscard.lib |
| Windows Embedded CE | Windows CE 3.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |