Windows Biometric Framework fail - visual-studio

Question

My friend asked me to write a simple program that captures a fingerprint from the built-in reader on a computer and prints out some kind of identifier. I can choose operating system myself, like a laptop with Windows or Linux, or an Android phone.
I thought that would be simple, surely there are many API:s for this, and I noticed that Microsoft themselves actually provides an API for it. Since I can log into my win10 laptop with the fingerprint reader, I know that the reader works.
For some reason the example that Microsoft themselves provide in their documention does not work for me. https://learn.microsoft.com/en-us/windows/desktop/api/Winbio/nf-winbio-winbiocapturesample
I suppose that the people writing those pages forgot to mention some important aspect or step, perhaps there is a way to add permission somewhere in Visual Studio.
After rewriting and trying many things, at least I get ONE step further in the process, but it still fails.
Here is the current version
#include "pch.h"
#include <iostream>
#include "Windows.h"
#include "Stdio.h"
#include "Conio.h"
#include "Winbio.h"
HRESULT CaptureSample();
void capture(WINBIO_SESSION_HANDLE sessionHandle, int flag);
int main()
{
std::cout << "Hello World!\n";
HRESULT x = CaptureSample();
}
HRESULT CaptureSample()
{
HRESULT hr = S_OK;
WINBIO_SESSION_HANDLE sessionHandle = NULL;
WINBIO_REJECT_DETAIL rejectDetail = 0;
// Connect to the system pool.
hr = WinBioOpenSession(
WINBIO_TYPE_FINGERPRINT, // Service provider
WINBIO_POOL_SYSTEM, // Pool type
WINBIO_FLAG_DEFAULT, // Access: Capture raw data
NULL, // Array of biometric unit IDs
0, // Count of biometric unit IDs
WINBIO_DB_DEFAULT, // Default database
&sessionHandle // [out] Session handle
);
if (FAILED(hr))
{
wprintf_s(L"WinBioOpenSession failed. hr = 0x%x\n", hr);
goto e_Exit;
}
wprintf_s(L"Start my fingerprint capturing...\n");
capture(sessionHandle, WINBIO_DATA_FLAG_INTEGRITY);
capture(sessionHandle, WINBIO_DATA_FLAG_PRIVACY);
capture(sessionHandle, WINBIO_DATA_FLAG_SIGNED);
capture(sessionHandle, WINBIO_DATA_FLAG_OPTION_MASK_PRESENT);
capture(sessionHandle, WINBIO_DATA_FLAG_RAW);
capture(sessionHandle, WINBIO_DATA_FLAG_INTERMEDIATE);
capture(sessionHandle, WINBIO_DATA_FLAG_PROCESSED);
hr = WinBioEnrollCapture(sessionHandle, &rejectDetail);
wprintf_s(L"WinBioEnrollCapture hr=%x rejection = %d\n", hr, rejectDetail);
if (sessionHandle != NULL)
{
WinBioCloseSession(sessionHandle);
sessionHandle = NULL;
}
e_Exit:
wprintf_s(L"\n Press any key to exit...");
_getch();
return hr;
}
void capture(WINBIO_SESSION_HANDLE sessionHandle, int flag) {
WINBIO_UNIT_ID unitId = 0;
WINBIO_REJECT_DETAIL rejectDetail = 0;
PWINBIO_BIR sample = NULL;
SIZE_T sampleSize = 0;
wprintf_s(L"\n Calling WinBioCaptureSample. Flag = %d.\n", flag);
HRESULT hr = WinBioCaptureSample(
sessionHandle,
WINBIO_PURPOSE_IDENTIFY,
flag,
&unitId,
&sample,
&sampleSize,
&rejectDetail
);
if (FAILED(hr))
{
if (hr == WINBIO_E_BAD_CAPTURE)
{
wprintf_s(L"\n Bad capture; reason: %d\n", rejectDetail);
}
else if (hr == E_ACCESSDENIED)
{
wprintf_s(L"\n WinBioCaptureSample failed, access denied.");
}
else
{
wprintf_s(L"\n WinBioCaptureSample failed. hr = 0x%x\n", hr);
}
goto e_Exit;
}
wprintf_s(L"\n Swipe processed - Unit ID: %d\n", unitId);
wprintf_s(L"\n Captured %d bytes.\n", sampleSize);
e_Exit:
if (sample != NULL)
{
WinBioFree(sample);
sample = NULL;
}
}
and here is the result of running it:
Hello World!
Start my fingerprint capturing...
Calling WinBioCaptureSample. Flag = 1.
WinBioCaptureSample failed, access denied.
Calling WinBioCaptureSample. Flag = 2.
WinBioCaptureSample failed, access denied.
Calling WinBioCaptureSample. Flag = 4.
WinBioCaptureSample failed, access denied.
Calling WinBioCaptureSample. Flag = 8.
WinBioCaptureSample failed, access denied.
Calling WinBioCaptureSample. Flag = 32.
WinBioCaptureSample failed, access denied.
Calling WinBioCaptureSample. Flag = 64.
WinBioCaptureSample failed, access denied.
Calling WinBioCaptureSample. Flag = 128.
WinBioCaptureSample failed, access denied.WinBioEnrollCapture hr=8009802c rejection = 0
Press any key to exit...
What am I missing?

Answer 1

I think you should try using another API, though your objective is not clear here. You can check the CloudABIS™ which is superscalar, biometrics-as-a-service (BaaS) matching system for fast deployment at lower costs. The API is provided by M2SYS TEchnology and they have an vast array of hardware also.