ImageGear for C and C++ on Windows v19.4 - Updated
enumIGContrastModes
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Core Component API Reference
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Core Component Enumerations Reference
> enumIGContrastModes
This enumeration specifies contrast adjustment modes.
Values:
IG_CONTRAST_PALETTE
Alter image palette.
IG_CONTRAST_PIXEL
Alter image pixels.
IG_CONTRAST_AUTO
If the image is indexed, alter palette, otherwise alter pixels.