(Xojo Plugin) ScMinidriver - Delete Smart Card Key Container

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

// Chilkat recommends the following free tool for interactively examining the contents of your smart card
// through the ScMinidriver interface:  MGTEK Tool for Minidriver enabled Smart Cards

// Let's first look at our smart card..
// Here's the view of the card we happen to be using: a Gemalto (Thales) IDPrime MD T=0 smart card.



Dim scmd As New Chilkat.ScMinidriver

// First we need to acquire a context to the smart card in the reader where it is inserted.
// Reader names (smart card readers or USB tokens) can be discovered
// via List Readers or Find Smart Cards
Dim readerName As String
readerName = "Alcor Micro USB Smart Card Reader 0"
Dim success As Boolean
success = scmd.AcquireContext(readerName)
If (success = False) Then
    System.DebugLog(scmd.LastErrorText)
    Return
End If

// If successful, the name of the currently inserted smart card is available:
System.DebugLog("Card name: " + scmd.CardName)

// To delete the contents of a key container, we'll need to be PIN authenticated..

// For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
Dim pinId As String
pinId = "user"
Dim retval As Int32
retval = scmd.PinAuthenticate(pinId,"0000")
If (retval <> 0) Then
    System.DebugLog("PIN Authentication failed.")
    success = scmd.DeleteContext()
    Return
End If

// Let's delete the contents of key container #7
// This deletes both keys (signature key and "key exchange" key) that might be present in the key container.
// (It is not possible to delete just one or the other.)
success = scmd.DeleteKeyContainer(7)
If (success = False) Then
    System.DebugLog(scmd.LastErrorText)
    success = scmd.DeleteContext()
    Return
End If

success = scmd.DeleteContext()
System.DebugLog("Successfully delete the contents of key container #7")