Xojo Plugin

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.

Xojo Plugin

Dim success As Boolean
success = False

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

Dim scard As New Chilkat.SCard

// First establish a context to the PC/SC Resource Manager
success = scard.EstablishContext("user")
If (success = False) Then
    System.DebugLog(scard.LastErrorText)
    Return
End If

Dim stReaders As New Chilkat.StringTable
success = scard.ListReaders(stReaders)
If (success = False) Then
    System.DebugLog(scard.LastErrorText)
    Return
End If

Dim numReaders As Int32
numReaders = stReaders.Count
Dim i As Int32
i = 0
While i < numReaders
    System.DebugLog(Str(i) + ": " + stReaders.StringAt(i))
    i = i + 1
Wend

// 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) Then
    System.DebugLog(scard.LastErrorText)
End If