ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Enumerations Reference / enumIGPromotionModes
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    enumIGPromotionModes
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    This enumeration specifies color promotion modes.

    Values:

    IG_PROMOTE_TO_4 Promote to 4-bit Indexed.
    IG_PROMOTE_TO_8 Promote to 8-bit Indexed.
    IG_PROMOTE_TO_24 Promote to 24-bit RGB.
    IG_PROMOTE_TO_32 Promote to 32-bit CMYK.