The smart card subsystem lets you communicate with cards that may not conform to the ISO 7816 specifications. To do this, these functions allow you to control the attributes of the communications between the application and the card by giving you direct, low-level manipulation of the reader.
To use these functions, you have to supply an identifier for the attribute in question. For valid attribute identifiers and values, refer to Table 3-1 in Requirements for PC-Connected Interface Devices.
| To… | Call… |
|---|---|
| Provide direct control of the reader. | SCardControl |
| Get reader attributes. | SCardGetAttrib |
| Set reader attribute. | SCardSetAttrib |