I have a problem using ActiveX, LabView and FingerPrint Reader

[Filipi]

Good Afternoon, everybody

I'm doing a project in LabView 6.1 doing a FingerPrint Verifying using a fringerprint reader from Microsoft and a based application ActiveX.

My doubt is

the program is recognizing the fingerprint reader, its reads my fingerprint but i cannot see the result neither save this for a future comparision

how can i solve this problem

Please i need a help in it soon.

Contact me by email in fi_tieppo@hotmail.com

I appreciate the help and the attention

Thank you

[MikeS81]

Hi Filipi,

which fingerprint product did you use? Can you show us a part of your actually existing code?

Mike

[Filipi]

Hi

I'm using a fingerprint reader from Microsoft called Microsoft FingerPrint Reader

And i've already recognized the sensor and the sensor recognizes my fingerprint when i pressed

I just cant read this information and use it for a comparision to identify who is the person

[MikeS81]

Hi Filipi,

sorry i thought i have the same, but i havn´t.

Mike

[Filipi]

But which application ActiveX do you use for your FingerPrint Reader...

or..how do you do with your fingerprint reader and labview?

[MikeS81]

Hi Filipi,

i have a dll for my fingerprint sensor, but til now never really use it. Sorry.

Mike

[LabBEAN]

If you're using the Griaule Fingerprint SDK 2007 for the Microsoft Fingerprint Reader:

Register Event Callbacks (Active X palette), create Callback VI's to run for the various events (SensorPlug, SensorUnplug, FingerDown, FingerUp, ImageAcquired), and pass a User Event reference to your ImageAcquired Callback VI and pass Event Data to the Generate User Event when the callback VI runs.  Then, when the image acquisition occurs, handle the subsequent User Event in your main code where you'll receive the "rawImage" as part of the Event Data.  I had trouble with the ActiveX implemenation of the BiometricDisplay method, so have now switched to DLL for that (since it passes out HBITMAP).  I'm working with NI to get the DLL to import correctly to see if the DLL is any better.  I'm also working with Griaule to make sure its not on their end (e.g. bad "GrFinger.h" file during DLL import).

Will keep you posted.

Here's another forum where we worked through part of this:

http://forums.ni.com/ni/board/message?board.id=170&message.id=297347&requireLogin=False

-Jason

[LabBEAN]

Everything seems to be working now...

See here:

http://forums.ni.com/ni/board/message?board.id=170&message.id=311191&jump=true