XcmsCIELuvQueryMaxC(3) XLIB FUNCTIONS XcmsCIELuvQueryMaxC(3)
NAME
XcmsCIELuvQueryMaxC, XcmsCIELuvQueryMaxL, XcmsCIELuvQueryMaxLC, Xcm-
sCIELuvQueryMinL - obtain the CIE L*u*v* coordinates
SYNTAX
Status XcmsCIELuvQueryMaxC(XcmsCCC ccc, XcmsFloat hue_angle, XcmsFloat
L_star, XcmsColor *color_return);
Status XcmsCIELuvQueryMaxL(XcmsCCC ccc, XcmsFloat hue_angle, XcmsFloat
chroma, XcmsColor *color_return);
Status XcmsCIELuvQueryMaxLC(XcmsCCC ccc, XcmsFloat hue_angle, XcmsColor
*color_return);
Status XcmsCIELuvQueryMinL(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 lightness (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 an-
gle (MaxLC). The white point associated with the returned
color specification is the Screen White Point. The value re-
turned 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*) dis-
playable by the screen. It returns this point in CIE L*u*v* coordi-
nates. 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 re-
turns 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(3), XcmsTekHVCQueryMaxC(3), XcmsQueryBlack(3)
Xlib - C Language X Interface
X Version 11 libX11 1.8.12 XcmsCIELuvQueryMaxC(3)
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