XcmsCIELabQueryMax(3X1Version 11 (ReleaseXcmsCIELabQueryMax(3X11)
NAME
XcmsCIELabQueryMaxC, XcmsCIELabQueryMaxL,
XcmsCIELabQueryMaxLC, XcmsCIELabQueryMinL - obtain the CIE
L*a*b* coordinates
SYNTAX
Status XcmsCIELabQueryMaxC(ccc, hue_angle, L_star,
color_return)
XcmsCCC ccc;
XcmsFloat hue_angle;
XcmsFloat L_star;
XcmsColor *color_return;
Status XcmsCIELabQueryMaxL(ccc, hue_angle, chroma,
color_return)
XcmsCCC ccc;
XcmsFloat hue_angle;
XcmsFloat chroma;
XcmsColor *color_return;
Status XcmsCIELabQueryMaxLC(ccc, hue_angle, color_return)
XcmsCCC ccc;
XcmsFloat hue_angle;
XcmsColor *color_return;
Status XcmsCIELabQueryMinL(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*a*b* 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
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XcmsCIELabQueryMax(3X1Version 11 (ReleaseXcmsCIELabQueryMax(3X11)
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(3X11), XcmsTekHVCQueryMaxC(3X11),
XcmsQueryBlack(3X11)
Xlib - C Language X Interface
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