Each TWAIN source may support a number of capabilities. These capabilities dictate the behavior of the TWAIN source. Before acquiring images from the selected TWAIN source, the user may wish to examine and change the capability settings for that source.
It is possible to check whether the scanner supports certain capabilities. For more information, refer to How to Find Out Whether Your Scanner Supports Certain Capabilities Using Twacker, found on LEAD's Support Forum.
LEADTOOLS provides functionality for getting and setting capabilities:
Medical Web Viewer .NET