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Inside Macintosh: Advanced Color Imaging Reference /

Chapter 3 - ColorSync Manager Reference for Applications and Device Drivers / Constants and Data Types

Signature of the Default Apple Color Management Module

Apple provides a robust color management module (CMM) that is installed as part of the ColorSync extension. The ColorSync Manager uses this CMM as the default when a profile specifies a preferred CMM that is unavailable or unable to perform a requested function. The default Apple CMM supports all the required and optional functions defined by the ColorSync Manager. For a description of the CMM functions, see "ColorSync Manager Reference for Color Management Modules" (page 4-3). Device manufacturers and peripheral developers can provide their own CMMs or use the one Apple supplies.

To specify the Apple CMM, set the CMMType field of the profile header to the 'appl' signature defined by the following enumeration. You use the CM2Header structure (page 3-43) for a ColorSync 2.x profile and the CMHeader structure (page 3-46) for a 1.0 profile header.

enum {
   kDefaultCMMSignature = 'appl'
};

Enumerator descriptions

kDefaultCMMSignature

Signature for the default Apple CMM supplied with the ColorSync Manager.