Ruby

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. Ruby

require 'chilkat'

success = false

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

scmd = Chilkat::CkScMinidriver.new()

# Reader names (smart card readers or USB tokens) can be discovered
# via List Readers or Find Smart Cards
readerName = "Alcor Micro USB Smart Card Reader 0"
success = scmd.AcquireContext(readerName)
if (success == false)
    print scmd.lastErrorText() + "\n";
    exit
end

# If we are successful, the name of the currently inserted smart card is available:
cardName = scmd.cardName()
print "Card name: " + cardName + "\n";

# Also, the ATR of the inserted card is available (you will likely not need the ATR).
print "ATR: " + scmd.atr() + "\n";

# Also, the maximum number of key containers is readily available:
print "Max number of key containers = " + scmd.get_MaxContainers().to_s() + "\n";

# Delete the context when finished with the card.
success = scmd.DeleteContext()
if (success == false)
    print scmd.lastErrorText() + "\n";
end

# Sample output:

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