I'm currently doing some research about how to make use of a scanner fingerprint. The scanner will be connected to a desktop computer via USB. the Fingerprint scanner is a Futronic Model: FS88H.
I downloaded the SDK version 4.2 for free and according to the website it says
"The SDK is implemented as Win32 API dynamic-link library (DLL). To make use of it, function call can be made to the DLL from any application program in Windows XP/2003/Vista/2008/7/2012/8/10/2016 32/64bit environment. Standard SDK package includes example programs with source code to show how to use the SDK for the following development platforms" and it includes Java among those platforms.
We want to store the fingerprint and then latter sent it as a parameter when consuming a service. My question is that if it's possible to writte the necesary code in Java using eclipse to interact with the scanner and then import that code into our Pega application?
So for Java you would be looking at a Java Applet but browsers are no longer supporting it, for example Chrome stopped support for it in version 45. You may want to check with the vendor and see what they recommend for integration with a Web Application.
IMO: I would use the scanner outside of the Pega Platform and use our features like the attachment screen with drag and drop to attached scanned images to the case. You could also use service calls to get the images into the our system from a separate application used for scanning the images.