XcmsCIELabQueryMaxC(3X11) X11R5 XcmsCIELabQueryMaxC(3X11)NAME
XcmsCIELabQueryMaxC, XcmsCIELabQueryMaxL, XcmsCIELabQueryMaxLC, Xcm‐
sCIELabQueryMinL - 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 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 function, given a hue angle and lightness, finds the point of maxi‐
mum chroma displayable by the screen. It returns this point in CIE
L*a*b* coordinates.
The 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 return value usu‐
ally indicates that the given chroma is beyond maximum for the given
hue angle.
The function, given a hue angle, finds the point of maximum chroma dis‐
playable by the screen. It returns this point in CIE L*a*b* coordi‐
nates.
The 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 return value usually indicates that the given
chroma is beyond maximum for the given hue angle.
SEE ALSOXcmsCIELuvQueryMaxC(3X11), XcmsTekHVCQueryMaxC(3X11), XcmsQuery‐
Black(3X11)
Xlib - C Language X Interface
XcmsCIELabQueryMaxC(3X11)