C# Signature:

[DllImport("winscard.dll", SetLastError=true)]
static extern Int32 SCardGetAttrib(
    IntPtr hCard,         // Reference value returned from SCardConnect
    UInt32 dwAttrId,         // Identifier for the attribute to get
    byte[] pbAttr,         // Pointer to a buffer that receives the attribute
    ref IntPtr pcbAttrLen    // Length of pbAttr in bytes
    );

VB Signature:

Declare Function SCardGetAttrib Lib "winscard.dll" (TODO) As TODO

User-Defined Types:

None.

Alternative Managed API:

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Notes:

None.

Tips & Tricks:

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Sample Code:

const UInt32 SCARD_ATTR_ATR_STRING = 0x00090303; // = SCARD_ATTR_VALUE(SCARD_CLASS_ICC_STATE, 0x0303) in WinSCard.h

IntPtr hCard; // Handle to the card

Int32 ret;

// Copy code to establish context here

// Copy code to connect to the card here

// Get the Answer to Rest

byte[] pbAttr = new byte[255];

IntPtr pcbAttrLen = new IntPtr(pbAttr.Length);

ret = SCardGetAttribe(hCard, SCARD_ATTR_ATR_STRING, pbAttr, ref pcbAttrLen);

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