I am developing a Biometric module using WBF. I am using the code given at Winbio CaptureSampleImage to get image data which is converted to a .bmp file and saved. I created a DLL file containing all the code related to my work with WBF. I am using this DLL in a Java Spring Boot Application using JNI. The jar created by this is run via a .vbs file as given below.
Set shellObj = CreateObject("Shell.Application") shellObj.ShellExecute "C:\Program Files\Java\jre1.8.0_192\bin\java.exe", "-jar MyApp.jar", "", "runas", 0
"runas" is used to run jar as Administrator rights. "0" is used to set it invisible.
I have previously used the DLL in a Jar running as a service using WINSW. For this I included WinBio AcquireFocus after creating a session as mentioned in WinBio AcquireFocus and Winbio CaptureSampleImage and it works perfectly fine.
Now I have two scenerios.
1) I use the code provided in Winbio CaptureSampleImage. This approach gets stuck when following is called.
hr = WinBioCaptureSample( sessionHandle, WINBIO_NO_PURPOSE_AVAILABLE, WINBIO_DATA_FLAG_RAW, &unitId, &sample, &sampleSize, &rejectDetail );
that is no output is returned.
2) I use WinBio AcquireFocus like I did with my service.
This prompts error:
Code : 0x80070005 (Access Denied).
Common HRESULT values are given HERE. This is probably because AcquireFocus can not be used in Application such as mine.
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