Allows the application to query the data source to see if it supports
extended image attribute capabilities, such as Barcode Recognition,
Shaded Area Detection and Removal, Skew detection and Removal, and so
on.
Remarks:
The TWAIN API allows for an application to query the results of many
advanced device/manufacturer operations. The responsibility of
configuring and setting up each advanced operation lies with the
device's data source user interface. Since the configuration of advanced
device/manufacturer-specific operations varies from manufacturer to
manufacturer, placing the responsibility for setup and configuration of
advanced operations allows the application to remain device independent.