XcmsCIELuvQueryMaxC(3X11)

     NAME
          XcmsCIELuvQueryMaxC, XcmsCIELuvQueryMaxL,
          XcmsCIELuvQueryMaxLC, XcmsCIELuvQueryMinL - obtain the CIE
          L*u*v* coordinates

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

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

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

          Status XcmsCIELuvQueryMinL(ccc, hue_angle, chroma,
          color_return)
                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*u*v* coordinates of maximum
                    chroma (MaxC and MaxLC), maximum lightnes (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) or maximum lightness (MaxL).

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

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

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

          The XcmsCIELuvQueryMinL 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*u*v* coordinates.  An XcmsFailure return value usually
          indicates that the given chroma is beyond maximum for the
          given hue angle.

     SEE ALSO
          XcmsCIELabQueryMaxC(3X11), XcmsTekHVCQueryMaxC(3X11),
          XcmsQueryBlack(3X11)
          Xlib - C Language X Interface