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Managing Color With ColorSync


Monitor Calibration Framework and Per/Monitor Profiles

ColorSync 2.5 uses the Monitors & Sound control panel to provide a monitor calibration framework and per/monitor profiles. Among the features: you can select a separate profile for each available monitor; you can calibrate monitors and, for each monitor, create one or more color profiles (based on variations in gamma, white point, and so on); Apple provides a default calibration plug-in, but you can create your own calibration plug-in or use third-party versions; you can choose from any available calibrator to create a monitor profile.

For an overview of these features, see:

Starting with version 2.5, ColorSync also offers new features for working with displays: you can call ColorSync functions to get or set a monitor profile by AVID; you can use an optional profile tag, which you specify with the cmVideoCardGammaTag constant, to provide video card gamma data for a profile--when you call the function CMSetProfileByAVID , it retrieves the video card gamma data and sets the video card.

For sample code that uses the function CMGetProfileByAVID , see:

For an overview of video card gamma, see:

For descriptions of the data types and constants you use with video card data, see:


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