Read Card ID tool
Example of how to get the Card ID using the API
Note: Most cards can be read with GetActiveID() function as this returns 8 bytes for up to 64 bits of card data. Certain readers such as Legic, Indala, HID™ long, have ID's longer than 64 bits. For these cards use GetActiveID32() which returns up to 255 bits of card data. The GetActiveID32 function is not available on the device firmware where it is not required.