ImageGear for C and C++ on Windows v19.4 - Updated
ICAP_HIGHLIGHT
User Guide > How to Work with... > Common Operations > Scanning > TWAIN Scanning > Set Scanning Capabilities > ICAP_HIGHLIGHT

Data Type:

TW_FIX32

Purpose:

Specifies which value in an image should be interpreted as the lightest "highlight." All values "lighter" than this value will be clipped to this value. Whether lighter values are smaller or larger can be determined by examining the Current value of ICAP_PIXELFLAVOR.

Valid Values:

0 to 255

Default Value:

255