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PROFILEHEADER structure (icm.h)

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Contains information that describes the contents of a device profile file. This header occurs at the beginning of a device profile file.

Syntax

typedef struct tagPROFILEHEADER {
  DWORD  phSize;
  DWORD  phCMMType;
  DWORD  phVersion;
  DWORD  phClass;
  DWORD  phDataColorSpace;
  DWORD  phConnectionSpace;
  DWORD  phDateTime[3];
  DWORD  phSignature;
  DWORD  phPlatform;
  DWORD  phProfileFlags;
  DWORD  phManufacturer;
  DWORD  phModel;
  DWORD  phAttributes[2];
  DWORD  phRenderingIntent;
  CIEXYZ phIlluminant;
  DWORD  phCreator;
  BYTE   phReserved[44];
} PROFILEHEADER;

Members

phSize

The size of the profile in bytes.

phCMMType

The identification number of the CMM that is used in the profile. Identification numbers are registered with the ICC.

phVersion

The version number of the profile. The version number is determined by the ICC. The current major version number is 02h. The current minor version number is 10h. The major and minor version numbers are in binary coded decimal (BCD). They must be stored in the following format.

Byte Number Contents
0 Major version number in BCD.
1 Minor version number in the most significant nibble of this byte. Bug fix version number in the least significant nibble.
2 Reserved. Must be set to 0.
3 Reserved. Must be set to 0.

phClass

Indicates the profile class. For a description of profile classes, see Using Device Profiles with WCS. A profile class may have any of the following values.

Profile Class Signature
Input Device Profile CLASS_SCANNER
Display Device Profile CLASS_MONITOR
Output Device Profile CLASS_PRINTER
Device Link Profile CLASS_LINK
Color Space Conversion Profile CLASS_COLORSPACE
Abstract Profile CLASS_ABSTRACT
Named Color Profile CLASS_NAMED
Color Appearance Model Profile CLASS_CAMP
Color Gamut Map Model Profile CLASS_GMMP

phDataColorSpace

A signature value that indicates the color space in which the profile data is defined. The member can be any of value from the Color Space Constants.

phConnectionSpace

A signature value that indicates the color space in which the profile connection space (PCS) is defined. The member can be any of the following values.

Profile Class Signature
XYZ SPACE_XYZ
Lab SPACE_Lab

When the phClass member is set to CLASS_LINK, the PCS is taken from the phDataColorSpace member.

phDateTime[3]

The date and time that the profile was created.

phSignature

Reserved for internal use.

phPlatform

The primary platform for which the profile was created. The primary platform can be set to any of the following values.

Platform Value
Apple Computer, Inc. 'APPL'
Microsoft Corp. 'MSFT'
Silicon Graphics, Inc. 'SGI'
Sun Microsystems, Inc. 'SUNW'
Taligent 'TGNT'

phProfileFlags

Bit flags containing hints that the CMM uses to interpret the profile data. The member can be set to the following values.

Constant Meaning
FLAG_EMBEDDEDPROFILE

The profile is embedded in a bitmap file.

FLAG_DEPENDENTONDATA

The profile can't be used independently of the embedded color data. Used for profiles that are embedded in bitmap files.

phManufacturer

The identification number of the device profile manufacturer. All manufacturer identification numbers are registered with the ICC.

phModel

The device manufacturer's device model number. All model identification numbers are registered with the ICC.

phAttributes[2]

Attributes of profile. The profile attributes can be any of the following values.

Constant Meaning
ATTRIB_TRANSPARENCY Turns transparency on. If this flag is not used, the attribute is reflective by default.
ATTRIB_MATTE Turns matte display on. If this flag is not used, the attribute is glossy by default.

phRenderingIntent

The profile rendering intent. The member can be set to one of the following values:

INTENT_PERCEPTUAL

INTENT_SATURATION

INTENT_RELATIVE_COLORIMETRIC

INTENT_ABSOLUTE_COLORIMETRIC

For more information, see Rendering intents.

phIlluminant

Profile illuminant.

phCreator

Signature of the software that created the profile. Signatures are registered with the ICC.

phReserved[44]

Reserved.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header icm.h

See also