Unicode 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.

Unicode C++

#include <CkSCardW.h>
#include <CkStringTableW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkSCardW scard;

    // First establish a context to the PC/SC Resource Manager
    success = scard.EstablishContext(L"user");
    if (success == false) {
        wprintf(L"%s\n",scard.lastErrorText());
        return;
    }

    CkStringTableW stReaders;
    success = scard.ListReaders(stReaders);
    if (success == false) {
        wprintf(L"%s\n",scard.lastErrorText());
        return;
    }

    int numReaders = stReaders.get_Count();
    int i = 0;
    while (i < numReaders) {
        wprintf(L"%d: %s\n",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) {
        wprintf(L"%s\n",scard.lastErrorText());
    }
    }