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i ll develop the online transcation process using finger print authentication...but i dont have any idea to getting image from this device....using nitgen fingerprint device diagnostic utility SDK i can get image and verify i wanna get this image from my to get image from this device....pls guid me...give some samples coding....

THanks & Regards
Posted 18-Feb-13 1:25am
Updated 18-Feb-13 1:31am
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Solution 1

hi dear,

If you are using nitgen finger print device, that means you have obviously sdk of nitgen.

You have to first of all install device driver provided with sdk.

now you have to import dll of sdk into your system and also put it dependent dll into system32/system(Wow).

now getting image from device, you have to call the sdk methods in sequence like below.

1. init sensor
2. capture image from sensor
3. uninit sensor.

if you want to verify this image, then you have to convert it into template.
Because image can not matched, but template can matched.

See the demo example provided with sdk for more information.
Deenuji 18-Feb-13 7:03am
how to import dll into my system???
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Solution 2

put dll in debug directory of your application,
then right click on application in solution explorer and add reference of this dll.

then import it in form like -
using System.Data;
Deenuji 18-Feb-13 7:23am
sir did have any experience in fingkey hamster???
Mr. Mahesh Patel 18-Feb-13 7:25am
Yes dear, I am in this field since 2.6 years.
See my company detail on
Deenuji 18-Feb-13 8:01am
thank u alot sir....but what is my question means how to access this dll file to my application and how to initialize this nitgen to my program...coz my mind is blank when i think about this can u give some sample program for related this project???
Mr. Mahesh Patel 18-Feb-13 8:24am
sorry dear,
I can not give you any example because it is opposite of company rules.
and i dont know that what is the version of nitgen you are using, and may be this version is not available to me.

for that you have to do self practice by learning nitgen example coming with sdk.

and believe me that this is very easy task.
Best ok luck
Member 11026320 30-Aug-14 2:58am
i am facing the same problem
can you just give the core idea to add dll i.e. Venus.dll
Deenuji 18-Feb-13 8:36am
i'm using nitgen fingkey hamster hfdu01-1(basic model) ....i ve sample coding but it doesnt give any coding scanning image....all coding only for verification one coding scanning image from this only give some idea...
Mr. Mahesh Patel 18-Feb-13 8:40am
when you verify image that means one image is stored into database or in any variable
and other is captured from device at a time.
Please check demo code carefully.
Deenuji 18-Feb-13 8:43am
sir actually they didn't capture the only giving two image as input for there is no coding for scanning image from device...
Mr. Mahesh Patel 18-Feb-13 8:46am
can you send me sdk...?
Deenuji 18-Feb-13 9:11am
k sir....ur mail id sir....pls
Deenuji 18-Feb-13 9:15am
sir...pls can u help me on teamviewer pls?????
Deenuji 18-Feb-13 22:45pm
sir i need ur help sir>????
Mr. Mahesh Patel 18-Feb-13 23:33pm
display email address is opposite of rules of codeproject.
But you are in trouble so, I will display my email here for five minutes after your next comment under this. after posting my email address will remove it with in 10 minutes.
so please note it as soon as possible.
Deenuji 18-Feb-13 23:34pm
k sir...pls give ur mail id...
Mr. Mahesh Patel 18-Feb-13 23:37pm
I hope you had it
Deenuji 18-Feb-13 23:38pm
sir i invite u for gmail chat..pls accept this
Member 10028727 23-Sep-14 12:48pm
hello Mahesh/Deenuji,

Even I am facing the same Issue.
Currently I am able to retrieve and verify using textEncodeFIR but I want to display the retrieved image to the user, pls help me.
Mr. Mahesh Patel 27-Sep-14 1:11am
Dear 10028727,

Please note below information for the format you are using.
1. FIR : Finger Image Record, Can not display in photo viewer, you have to use special tool for that.
2. FMR (ISO Format) : Finger Minutiae Record, can not display in photo viewer.
3. Raw Image : Image of finger without header, can not display in photo viewer.
4. BMP/JPG/PNG : Image can display in photo viewer
5. WSQ Image: Wavelet Scalar Quantization image can not be display in photo viewer.

I thinks this information is enough to understand all biometric format related to fingerprint.
Let me know if you have any other doubts.
Mani2445 3-Jun-15 2:22am
Hi Mahesh,

Thanks for your reply, I think my question didnt reach you properly!!

Is it possible to convert FIR to any image format? if yes, pls help me.. i am trying for this such a long time :(

FYI, i am using VB.NET !!
Mani2445 3-Jun-15 2:24am
Also pls share your mail/contact details, so i can get it done easily ;)
Mr. Mahesh Patel 27-Jul-15 5:13am
hi Mani,
Yes, It is possible to convert FIR to bitmap format. let me know if you have not get solution.
Please write me on with attachment of two FIR files.
VICK 29-Sep-14 7:15am
Always use "Improve Solution" option to edit and update your solution. as posting multiple solutions for a single question is also against the CodeProject Norms.

@Mr.Mahesh patel
Mr. Mahesh Patel 29-Sep-14 7:40am
Your approach should towards finding mistakes and errors on code not in post.
Try to help people in "Code", not in "how to post".
And one more thing you have to note that sometimes we are improving solution, but user's eyes is not staying further in that answer because previous they have already read that answer and they are not satisfied with previous answer. They are ignoring old post to read and always seeking for new answer.

VICK 30-Sep-14 0:11am
dn what is the benefit and purpose of providing "Improve Solution" kind of options on the CP and defined rules???

& when it comes to "My Approach", do have a look at my profile and work on CP in my membership time span which is only 1.5 year which is much more than yours of almost 5years.

Mr. Mahesh Patel 30-Sep-14 0:50am
Look, Mr. VICK,
I don't want to waste my time in fighting with you.
Because time is money for me.
If you have a better solution of question then post here. Do not discuss any other matter over here.
VICK 2-Oct-14 2:40am
If you have used reply option against my comment. I would have get the notification.
Well I am not here to fight as well. We all are here to help and get helped.
But following the norms/rules is one's ethical responsibility as well.
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Solution 5

try u code with hamster api ...while we purchasing they provide some SDK Sample with all different languages. because api code varied from version of kits

otherwise get help from below mentioned member[^]

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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