XcmsCIELabQueryMax(3) XLIB FUNCTIONS XcmsCIELabQueryMax(3)
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 InterfaceX Version 11 libX11 1.8.10 XcmsCIELabQueryMax(3)
