Go

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.

Go

    success := false

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

    scard := chilkat.NewSCard()

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

    stReaders := chilkat.NewStringTable()
    success = scard.ListReaders(stReaders)
    if success == false {
        fmt.Println(scard.LastErrorText())
        scard.DisposeSCard()
        stReaders.DisposeStringTable()
        return
    }

    numReaders := stReaders.Count()
    i := 0
    for i < numReaders {
        fmt.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.
    success = scard.ReleaseContext()
    if success == false {
        fmt.Println(scard.LastErrorText())
    }


    scard.DisposeSCard()
    stReaders.DisposeStringTable()