 TWAIN
specification doubled in size going from 1.7 to 1.8.&nbsp; The original 1.5
description of TWAIN allowed for the following kinds of things:&nbsp; standard
and custom capability definitions, capabilities using a variety of container
types (enumerations and ranges among them), self-descriptive data types
(integers, strings, etc…), and access modes (read-only, read-write, etc).&nbsp;
1.8 introduced the ability to independently address the image generating
devices (for instance the front and rear camer