ImageGear for C and C++ on Windows v19.10 - Updated
CAP_DUPLEXENABLED
User Guide > How to Work with... > Common Operations > Scanning > TWAIN Scanning > Set Scanning Capabilities > CAP_DUPLEXENABLED

Data Type:

TW_BOOL

Purpose:

The user can set the duplex option to be TRUE or FALSE. If TRUE, the scanner scans both sides of a paper; otherwise, the scanner will scan only one side of the image.

Valid Values:

TRUE, FALSE

Default Value:

FALSE