January 28th Tuesday 2010

  Today I developed a little program to verify finger prints gathering from the FR 500 finger print reader.  I used several APIs to develop the program.

 

  These APIs all are difficulty.  There are several types defined and macros.  I have to get their usages from several sample project, and make them in a whole.

 

  There is steps to get and verify a finger feature.

 

  1. initial a device context, verifing context and so on;

  2. get a bitmap from a finger reader;

  3. extract a finger feature from the bitmap;

  4. verify a finger feature.

  5. free the device context, verifing context and so on.

 

  In these steps, I have to use several APIs.  We can wraps them into a package.