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Manual Reference Pages  - XcmsColor (3X11)

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XcmsColor, XcmsRGB, XcmsRGBi, XcmsCIEXYZ, XcmsCIEuvY, XcmsCIExyY, XcmsCIELab, XcmsCIELuv, XcmsTekHVC, XcmsPad - Xcms color struture

CONTENTS

Structures
Description

The structure for XcmsColor contains:

typedef unsigned long XcmsColorFormat;/* Color Specification Format */

typedef struct {
     union {
          XcmsRGB RGB;
          XcmsRGBi RGBi;
          XcmsCIEXYZ CIEXYZ;
          XcmsCIEuvY CIEuvY;
          XcmsCIExyY CIExyY;
          XcmsCIELab CIELab;
          XcmsCIELuv CIELuv;
          XcmsTekHVC TekHVC;
          XcmsPad Pad;
     } spec;
     unsigned long pixel;
     XcmsColorFormat format;
} XcmsColor;             /* Xcms Color Structure */

typedef double XcmsFloat;

typedef struct {
     unsigned short red; /* 0x0000 to 0xffff */
     unsigned short green;/* 0x0000 to 0xffff */
     unsigned short blue;/* 0x0000 to 0xffff */
} XcmsRGB;               /* RGB Device */

typedef struct {
     XcmsFloat red;      /* 0.0 to 1.0 */
     XcmsFloat green;    /* 0.0 to 1.0 */
     XcmsFloat blue;     /* 0.0 to 1.0 */
} XcmsRGBi;              /* RGB Intensity */

typedef struct {
     XcmsFloat X;
     XcmsFloat Y;        /* 0.0 to 1.0 */
     XcmsFloat Z;
} XcmsCIEXYZ;            /* CIE XYZ */

typedef struct {
     XcmsFloat u_prime;  /* 0.0 to ~0.6 */
     XcmsFloat v_prime;  /* 0.0 to ~0.6 */
     XcmsFloat Y;        /* 0.0 to 1.0 */
} XcmsCIEuvY;            /* CIE u’v’Y */

typedef struct {
     XcmsFloat x;        /* 0.0 to ~.75 */
     XcmsFloat y;        /* 0.0 to ~.85 */
     XcmsFloat Y;        /* 0.0 to 1.0 */
} XcmsCIExyY;            /* CIE xyY */

typedef struct {
     XcmsFloat L_star;   /* 0.0 to 100.0 */
     XcmsFloat a_star;
     XcmsFloat b_star;
} XcmsCIELab;            /* CIE L*a*b* */

typedef struct {
     XcmsFloat L_star;   /* 0.0 to 100.0 */
     XcmsFloat u_star;
     XcmsFloat v_star;
} XcmsCIELuv;            /* CIE L*u*v* */

typedef struct {
     XcmsFloat H;        /* 0.0 to 360.0 */
     XcmsFloat V;        /* 0.0 to 100.0 */
     XcmsFloat C;        /* 0.0 to 100.0 */
} XcmsTekHVC;            /* TekHVC */

typedef struct {
     XcmsFloat pad0;
     XcmsFloat pad1;
     XcmsFloat pad2;
     XcmsFloat pad3;
} XcmsPad;               /* four doubles */

The XcmsColor structure contains a union of substructures, each supporting color specification encoding for a particular color space.

XcmsAllocColor(3X11), XcmsStoreColor(3X11), XcmsConvertColors(3X11),
Xlib - C Language X Interface

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