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Questions tagged [digital-persona-sdk]

54 questions
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ctypes equivalent of "char name [MAX_DEVICE_NAME_LENGTH]"

In my ongoing testing of accessing Digital Persona DLL functions from python, I got stuck at the following piece of code: import ctypes # Load DLL into memory. # dpfpddDll = ctypes.WinDLL ("dpfpdd.dll") dpfpddDll = ctypes.CDLL ("dpfpdd.dll") #…
Adel Khayata
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Accessing Digital Persona DLL using Python

I am trying to access Digital Persona DLL functions using ctypes library in Python. I have written this test code: import ctypes dpfpddDll = ctypes.CDLL ("dpfpdd.dll") # Library initialization. dpfpdd_init =…
Adel Khayata
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Digital persona SDK - native problems

I am using in my app Digital Persona SDK for fingerprint identification. When i use the identify function on less then 250 fmds it works fine. Engine.Candidate candidates[] = m_engine.Identify(searchedFmd, 0, fmdArray, DEFAULT_THRESHOLD, 1);…
Moshe Yamini
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Retrieve and cache a result set into my Application

I have a byte[] column in a table that has fingerprint data stored in it. I wish to query the rows from a table only once and store the record set in a variable or somewhere in my code, so that I don't have to query the database each and every time.…
DevRingim
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Fingerprint capturing with DigitalPersona 5300 Reader. How to detect the device in a windows service?

I'm trying to integrate the U.are.U 5300 Fingerprint device in my web application using windows service. I'm using SignalR to communicate back and forth, but that isn't a problem. I've a small piece of code which returns the first device that is…
Nic
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How to convert saved fingerprint byte to image

Good day friends, I was able to capture and save a user fingerprint to MySQL database using digital persona sdk in java. The fingerprint is stored as bytes. Normally I'm able to convert ordinary picture from bytes to image and set it as icon to…
Emperor
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Verifying fingerprint using u are u digital persona in java

I'm trying to verify finger print using digital persona sdk. I'm able to capture and save the template to MySQL database using the following code but the problem is during verification. It's always show failed when I try to verify a finger…
Emperor
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How to create digital persona FMD from byte[] in Android?

I am able to save FMD to SQLite in Android. However when I am trying to recreate FMD it is not working properly. Saving FMD in database. try { Fmd m_enrollmant_fmd = m_engine.CreateEnrollmentFmd(Fmd.Format.ANSI_378_2004,…
Faizan Mubasher
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DP U.are.U bio-metric device with Android device from a web application

We have a web application which requires bio-metric authentication for users to login to the web application. Currently those users cannot login from Android devices because they cannot verify bio-metrics on their smart phones. We want to find a…
Muhammad Adeel
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Digital Persona Finger Print captured image as WSQ

I'm using Digital Persona Finger Print device and need to capture the image as WSQ format instead of Bmp format Using C# DigitalPersona One Touch for Windows SDK Sample Code private DPFP.Capture.SampleConversion SampleConversion; private Bitmap…
ASalameh
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Unable to detect Digital Persona 5100 Device using Android Phone

I want to build an Attendance based Android application though the fingerprint using Digital Persona 5100 fingerprint reader. I know it is possible to build android application using this device but I am unable to find Digital Persona 5100 Android…
kirti
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C# - Padding image bytes with white bytes to fill 512 x 512

I'm using Digital Persona SDK to scan fingerprints in wsq format, for requeriment I need 512 x 512 image, the SDK only export 357 x 392 image. The sdk provide a method to compress captured image from device in wsq format and return a byte array that…
jhuamanchumo
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Is there way to extract fingerprint data to an image?

I am using Digital Persona U.Are.U 4500 and I have installed the finger print SDK from the hardware. I am using the Java API and was able to run the sample codes in Java. Right now, I am trying save the fingerprint data as an image. Is there any way…
Amelia Lita
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When i click the capture Button 2nd time "Error: DP_Device_Failure" Using DPUru 5100

I am using Digital Persona Uru 5100. When i tried to click the captur button for the first time it works correctly. But after closing the capture window and clicking again on capture button it generates error Error Screenshot Here After clicking ok…
Cute Gurya
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Android Studio Debugging External Fingerprint Application

I am writing an Android application using U.are.U 4500 fingerprint reader, so, my question is: how can I debug such an application? I have device USB port busy (fingerprint is connected to), is there another way to debug without unplugging the…
Luis Enrique Acosta Rios
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