XcmsCIELuvQueryMaxC(3X11) XLIB FUNCTIONSXcmsCIELuvQueryMaxC(3X11)


NAME
       XcmsCIELuvQueryMaxC, XcmsCIELuvQueryMaxL, XcmsCIELuvQuery-
       MaxLC, XcmsCIELuvQueryMinL - obtain the CIE L*u*v* coordi-
       nates

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 proce-
                 dures 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 light-
                 ness (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).



X Version 11                Release 5                           1

XcmsCIELuvQueryMaxC(3X11) XLIB FUNCTIONSXcmsCIELuvQueryMaxC(3X11)


       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.  Note that 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 maxi-
       mum lightness (L*) displayable by the screen.  Note that
       it returns this point in CIE L*u*v* coordinates.  An Xcms-
       Failure 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.  Note that 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*) dis-
       playable by the screen.  Note that 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), Xcm-
       sQueryBlack(3X11)
       Xlib - C Language X Interface
























X Version 11                Release 5                           2