Hi there,
We don't provide this kind of option in our toolkit and I don't know any company which do that.
However, I can give you some hints:
- This kind of application is also called a Twain Data Source (Twain DS)
- The twain.org team provides an example of TWAIN DS written in C which is quite comprehensive. You can download it from http://sourceforge.net/projects/twain-samples/files
I think a good way is to learn a bit the open source application provided by twain.org team & modify it to do your own TWAIN virtual driver. Not so hard task but requires some time & investigations. Also, you can have more information on this kind of application browsing the twain.org forum located at http://www.twainforum.org/
With best regards,
Loïc