title: Is there a fingerprint reader api/sdk?
body: <p>I need to read the user's fingerprint from my application.</p>
  
  <p>What I really want is a simple SDK that works with a lot of inexpensive fingerprint readers but I can deal with something that works only with one specific model if that model is cheap and available worldwide.</p>
  
  <p>And <strong>it has to be royalty-free</strong>, I can pay for a development license but if I have to pay for each installation I just can't use it.</p>
  
  <p>What I'm doing has no relation to login or encryption, so the software included with the reader will probably be useless to me.</p>