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

See more SCard Examples

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

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

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

var scard = new CkSCard();

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

var stReaders = new CkStringTable();
success = scard.ListReaders(stReaders);
if (success == false) {
    console.log(scard.LastErrorText);
    return;
}

var numReaders = stReaders.Count;
var i = 0;
while (i < numReaders) {
    console.log(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) {
    console.log(scard.LastErrorText);
}