How to get fingerprint image in Biometrics (Digital Persona)?

See more:

C#

Hi to all..

I am developing a C# application for a massage therapy clinic which involves the monitoring of the therapist's session time. I want to monitor the time consumed per session per therapist.

I've decided to use a Biometrics device which will be use in massage therapy session.

First, the therapist must log in to the Biometrics device before starting the massage therapy session and logout after the massage therapy session.

The problem is that i want to get the therapist biometrics as an imoge and store it to database so that it can be used in new transactions.

Is there any other way to get the Biometrics image and compare it to the newly scanned finger of the therapist??

please help me on this. Thank you..