Visual FoxPro

ScMinidriver - Acquire Context with Smart Card or USB Token

See more ScMinidriver Examples

Initializes communication with the card inserted in the given reader (or a USB token). Reader names can be discovered via the SCard.ListReaders or SCard.FindSmartcards methods. If successful, the Atr and CardName properties will be set. Visual FoxPro

LOCAL lnSuccess
LOCAL loScmd
LOCAL lcReaderName
LOCAL lcCardName

lnSuccess = 0

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

loScmd = CreateObject('Chilkat.ScMinidriver')

* Reader names (smart card readers or USB tokens) can be discovered
* via List Readers or Find Smart Cards
lcReaderName = "Alcor Micro USB Smart Card Reader 0"
lnSuccess = loScmd.AcquireContext(lcReaderName)
IF (lnSuccess = 0) THEN
    ? loScmd.LastErrorText
    RELEASE loScmd
    CANCEL
ENDIF

* If we are successful, the name of the currently inserted smart card is available:
lcCardName = loScmd.CardName
? "Card name: " + lcCardName

* Also, the ATR of the inserted card is available (you will likely not need the ATR).
? "ATR: " + loScmd.Atr

* Also, the maximum number of key containers is readily available:
? "Max number of key containers = " + STR(loScmd.MaxContainers)

* Delete the context when finished with the card.
lnSuccess = loScmd.DeleteContext()
IF (lnSuccess = 0) THEN
    ? loScmd.LastErrorText
ENDIF

* Sample output:

* Card name: IDPrime MD T=0
* ATR: 3B7F96000080318065B0855956FB120FFE829000
* Max number of key containers = 20

RELEASE loScmd