XcmsConvertColors(XS)    X Version 11 (Release 5)      XcmsConvertColors(XS)
                                6 January 1993


 Name

    XcmsConvertColors - convert CCC color specifications

 Syntax


    Status XcmsConvertColors(ccc, colors_in_out, ncolors, target_format,
                             compression_flags_return)
          XcmsCCC ccc;
          XcmsColor colors_in_out[];
          unsigned int ncolors;
          XcmsColorFormat target_format;
          Bool compression_flags_return[];


 Arguments


    ccc            Specifies the CCC.  If Conversion is between device-
                   independent color spaces only (for example, TekHVC to
                   CIELuv), the CCC is necessary only to specify the Client
                   White Point.

    colorsinout  Specifies an array of color specifications.  Pixel members
                   are ignored and remain unchanged upon return.

    compressionflagsreturn
                   Specifies an array of Boolean values for returning
                   compression status.  If a non-NULL pointer is supplied,
                   each element of the array is set to True if the corre-
                   sponding color was compressed, and False otherwise.  Pass
                   NULL if the compression status is not useful.

    ncolors        Specifies the number of XcmsColor structures in the color
                   specification array.

    targetformat  Specifies the target color specification format.

 Description

    The XcmsConvertColors function converts the color specifications in the
    specified array of XcmsColor structures from their current format to a
    single target format, using the specified CCC.  When the return value is
    XcmsFailure, the contents of the color specification array are left
    unchanged.

    The array may contain a mixture of color specification formats (for exam-
    ple, 3 CIE XYZ, 2 CIE Luv, ...).  Note that when the array contains both
    device-independent and device-dependent color specifications, and the
    targetformat argument specifies a device-dependent format (for example,
    XcmsRGBiFormat, XcmsRGBFormat) all specifications are converted to CIE
    XYZ format then to the target device-dependent format.

 See also

    DisplayOfCCC(XS), XcmsCCCOfColormap(XS), XcmsCreateCCC(XS),
    XcmsDefaultCCC(XS), XcmsSetWhitePoint(XS)
    Xlib - C Language X Interface