How To Fix Winscard.dll Error Codes
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If you receive an error message with winscard.dll error codes, you should read these troubleshooting tips.
The SCardConnect function establishes a specific connection (using the specific resource currency broker context ) between application calls, not forgetting the card chip stored in the specific real drive is turned on. If there is no card in the specified reader, a super error will be returned.
Syntax
LONG SCardConnectA ( [in] SCARDCONTEXT hKontext, [in] LPCSTR szReader, [in] DWORD dwShareMode, [in] DWORD dw Preferred protocols, [out] LPSCARDHANDLE phCard, [out] LPDWORD pdwActiveProtocol);
Parameters
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A handle that identifies this resource manager context . The resource manager’s point of view is acquired on the first call. together SCardEstablishContext .
A flag indicating whether other types of applications can connect to the map.
value | Value |
---|---|
| This app is ready for you to share your map with alternative apps. |
| This app is not ready to use a card with dby another application. |
| this may affect the player for personal use and will directly reduce it. Other utilities do not have access to it. |
Bitmask using valid protocols for the connection. Possible values can be combined with your operation.
value | Value | |
---|---|---|
| T = 0 only one protocol is acceptable. | |
| T = 1 might be an acceptable protocol.
| this is |
parameter can probably be zero only if the dwShareMode parameter is set to SCARD_SHARE_DIRECT. It is just that the drivers do not negotiate the protocol until the IOCTL_SMARTCARD_SET_PROTOCOL control directive is sent using SCardControl . |
This descriptor identifies the connection to help smart card in the selected reader.
Return Value
This function returns different ideals depending on whether it succeeds or fails.
Return code | Description |
---|---|
| SCARD_S_SUCCESS. |
| Error code. For more information see Smart Card Values back. |
| The player was unable to save the URL. |
The scardconnect feature typically uses a smart card reader and a smart card reader . For more information on other access functions, see Smart card and read access features .
Examples
The following example creates a romantic relationship with a reader. The figure assumes that hContext is valid.functional descriptor of type SCARDCONTEXT, which was obtained after the previous call to SCardEstablishContext .
SCARDHANDLE hCardHandle;DURABILITY;DWORD-dwAP;lReturn = SCardConnect (hContext, (LPCTSTR) "Rainbow Technologies SCR3531 0", SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1, & hCard pen, & dwAP);if (SCARD_S_SUCCESS! = lReturn) printf ("SCardConnect error n"); Exit (1); // Or some other suitable action.// Let's use this connection.// Display the active protocol.Switch (dwAP) SCARD_PROTOCOL_T0 case: printf ("Active protocol T0 n"); Pause; SCARD_PROTOCOL_T1 case: printf ("Active T1 protocol n"); Pause; SCARD_PROTOCOL_UNDEFINED case: Initially: printf ("Inconsistent or unknown active standard protocol n"); Pause;// Don't forget to disconnect (by calling SCardDisconnect).// ...
Requirements
Client supported at least | Windows® XP [computer versions only] |
Minimum Supported Server | Windows Server 2003 [desktop only] |
Target Application Platform | Windows td> |
Title | winscard.h |
Library | Winscard.lib |
DLL | Winscard.dll |
See Also
- Article
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The winscard.h header defines SCardConnect as an alias that automatically selects the ANSI or Unicode version of this approach function based on the definition of the UNICODE preprocessor constant. Mixing a neutral coding alias with laws that cannot lead to coding neutral will lead to incompatibilities, which, on the other hand, will lead to runtime errors at compile time. For more information, see Function Prototype Conventions .
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