Legacy Document

Inside Macintosh: Advanced Color Imaging on the Mac OS /

Chapter 5 - Developing Color Management Modules / Creating a Color Management Module

Required Component Manager Request Codes

At a minimum, your CMM must handle the required Component Manager and required ColorSync Manager request codes. The required Component Manager request codes are defined by these constants:

• kComponentOpenSelect (-1)
  Requests that you open an instance of the component. For more information, see "Establishing the Environment for a New Component Instance" (page 5-21).
• kComponentCloseSelect (-2)
  Requests that you close the component instance. For more information, see "Releasing Private Storage and Closing the Component Instance" (page 5-21).
• kComponentCanDoSelect (-3)
  Requests that you tell whether your CMM handles a specific request. For more information, see "Determining Whether Your CMM Supports a Request" (page 5-21).
• kComponentVersionSelect (-4)
  Requests that you return your CMM's version number. For more information, see "Providing Your CMM Version Number" (page 5-22).