Lua

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. Lua

local chilkat = require("chilkat")

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

local scmd = chilkat.ScMinidriver.new()

-- Reader names (smart card readers or USB tokens) can be discovered
-- via List Readers or Find Smart Cards
local readerName = "Alcor Micro USB Smart Card Reader 0"
local success = scmd:acquire_context(readerName)
if not success then
    print(scmd.last_error_text)
    return
end

-- If we are successful, the name of the currently inserted smart card is available:
local cardName = scmd.card_name
print("Card name: " .. cardName)

-- Also, the ATR of the inserted card is available (you will likely not need the ATR).
print("ATR: " .. scmd.atr)

-- Also, the maximum number of key containers is readily available:
print("Max number of key containers = " .. scmd.max_containers)

-- Delete the context when finished with the card.
success = scmd:delete_context()
if not success then
    print(scmd.last_error_text)
end

-- Sample output:

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