Java

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.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.SCard;
import com.chilkatsoft.chilkat2.StringTable;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        SCard scard = new SCard();

        // First establish a context to the PC/SC Resource Manager
        try {
            scard.establishContext("user");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        StringTable stReaders = new StringTable();
        try {
            scard.listReaders(stReaders);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int numReaders = stReaders.getCount();
        int i = 0;
        while (i < numReaders) {
            System.out.println(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.
        try {
            scard.releaseContext();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
        }
    }
}