biometric device ( nitgen fingkey hamster ) SDK

[eys]

hi every one.

im here stuck with some issues about biometrics , specyfically fingerprinting.

i am writing biFIR and textFIr to database, have SDK from company, but cant make to take values stored in DB and make the verifyMatch from a .capture function, ( fingerprint verification process)

problem is, when retrieving datarow containing info, cant parse, convert that to the type this software uses...
some like this...

**********

m_NBioAPI = new NBioAPI();
...
// Get Captured FIR Data from Client and Read stored FIR
// this part, how in hekk do i make this. part, theres abosolutly nothing on google, nor company help, forums..
does anyone know ???
Data from File or DB.
...
uint ret;
bool result;
NBioAPI.Type.FIR_PAYLOAD myPayload = new NBioAPI.Type.FIR_PAYLOAD();
ret = m_NBioAPI.VerifyMatch(hCapturedFIR, hStoredFIR, out result, myPayload);

**********


thanks so much for any u can provide..