Swift

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.

Swift

func chilkatTest() {
    var success: Bool = false

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

    let scard = CkoSCard()!

    // First establish a context to the PC/SC Resource Manager
    success = scard.establishContext(scope: "user")
    if success == false {
        print("\(scard.lastErrorText!)")
        return
    }

    let stReaders = CkoStringTable()!
    success = scard.listReaders(st: stReaders)
    if success == false {
        print("\(scard.lastErrorText!)")
        return
    }

    var numReaders: Int = stReaders.count.intValue
    var i: Int = 0
    while i < numReaders {
        print("\(i): \(stReaders.string(at: 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 {
        print("\(scard.lastErrorText!)")
    }


}