I want to implement a magnetic cardreader. The cardreader is connected to a comport.
How can I listen within my application if any data is through the com-port (send by the cardreader).
And how to limit the comports that are checked? (only one comport will be used).
After I captured the sending of data the application must be started and the numeric value that is send, must be saved/stored for later processing (searching in a database).
Please supply me with an example.