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NAME

       XcmsCIELabQueryMaxC,   XcmsCIELabQueryMaxL,  XcmsCIELabQueryMaxLC,  XcmsCIELabQueryMinL  -
       obtain the CIE L*a*b* coordinates

SYNTAX

       Status XcmsCIELabQueryMaxC(XcmsCCC ccc, XcmsFloat hue_angle, XcmsFloat  L_star,  XcmsColor
              *color_return);

       Status  XcmsCIELabQueryMaxL(XcmsCCC  ccc, XcmsFloat hue_angle, XcmsFloat chroma, XcmsColor
              *color_return);

       Status XcmsCIELabQueryMaxLC(XcmsCCC ccc, XcmsFloat hue_angle, XcmsColor *color_return);

       Status XcmsCIELabQueryMinL(XcmsCCC ccc, XcmsFloat hue_angle, XcmsFloat  chroma,  XcmsColor
              *color_return);

ARGUMENTS

       ccc       Specifies  the  CCC.   Note  that  the  CCC's Client White Point and White Point
                 Adjustment procedures are ignored.

       chroma    Specifies the chroma at which  to  find  maximum  lightness  (MaxL)  or  minimum
                 lightness (MinL).

       color_return
                 Returns  the  CIE L*a*b* coordinates of maximum chroma (MaxC and MaxLC), maximum
                 lightness (MaxL), or minimum lightness (MinL) displayable by the screen for  the
                 given  hue  angle and lightness (MaxC), hue angle and chroma (MaxL and MinL), or
                 hue  angle  (MaxLC).   The  white  point  associated  with  the  returned  color
                 specification is the Screen White Point.  The value returned in the pixel member
                 is undefined.

       hue_angle Specifies the hue angle (in degrees) at which to find maximum chroma  (MaxC  and
                 MaxLC), maximum lightness (MaxL), or minimum lightness (MinL).

       L_star    Specifies the lightness (L*) at which to find maximum chroma (MaxC).

DESCRIPTION

       The  XcmsCIELabQueryMaxC  function,  given  a  hue angle and lightness, finds the point of
       maximum  chroma  displayable  by  the  screen.   It  returns  this  point  in  CIE  L*a*b*
       coordinates.

       The  XcmsCIELabQueryMaxL  function,  given  a hue angle and chroma, finds the point in CIE
       L*a*b* color space of maximum lightness (L*) displayable by the screen.  It  returns  this
       point  in  CIE L*a*b* coordinates.  An XcmsFailure return value usually indicates that the
       given chroma is beyond maximum for the given hue angle.

       The XcmsCIELabQueryMaxLC function, given a hue angle, finds the point  of  maximum  chroma
       displayable by the screen.  It returns this point in CIE L*a*b* coordinates.

       The XcmsCIELabQueryMinL function, given a hue angle and chroma, finds the point of minimum
       lightness  (L*)  displayable  by  the  screen.   It  returns  this  point  in  CIE  L*a*b*
       coordinates.   An  XcmsFailure  return  value  usually  indicates that the given chroma is
       beyond maximum for the given hue angle.

SEE ALSO

       XcmsCIELuvQueryMaxC(3), XcmsTekHVCQueryMaxC(3), XcmsQueryBlack(3)
       Xlib - C Language X Interface