ImageGear for C and C++ on Windows v19.10 - Updated
Color Books
User Guide > How to Work with... > Color > Spot and Mask Channels > Color Books

ImageGear can load Adobe Color Books and apply the loaded colors for displaying spot channels. The Color books API allows you to specify a path to the color books, enumerates loaded books and colors within a book, and retrieves info on the specific spot color (see IG_colorbook_create). Display and processing code uses color books to convert spot colors to regular colors such as CMYK, RGB, etc.