(C#) PC/SC List Smart Card Readers (and USB Tokens)

See more SCard Examples

Demonstrates how to list the smart card readers and USB tokens connected to the computer.

Note: This functionality was introduced in Chilkat v9.5.0.87.

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// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.SCard scard = new Chilkat.SCard();

// First establish a context to the PC/SC Resource Manager
bool success = scard.EstablishContext("user");
if (success == false) {
    Debug.WriteLine(scard.LastErrorText);
    return;
}

Chilkat.StringTable stReaders = new Chilkat.StringTable();
success = scard.ListReaders(stReaders);
if (success == false) {
    Debug.WriteLine(scard.LastErrorText);
    return;
}

int numReaders = stReaders.Count;
int i = 0;
while (i < numReaders) {
    Debug.WriteLine(Convert.ToString(i) + ": " + stReaders.StringAt(i));
    i = i + 1;
}

// Sample output:
// 0: Alcor Micro USB Smart Card Reader 0
// 1: FS USB Token 0
// 2: FT Java Token 0
// 3: SCM Microsystems Inc. SCR33x USB Smart Card Reader 0
// 4: Yubico YubiKey OTP+FIDO+CCID 0

// Applications should always release the context when finished.
success = scard.ReleaseContext();
if (success == false) {
    Debug.WriteLine(scard.LastErrorText);
}