XcmsCIELabQueryMax(3X11) XLIB FUNCTIONS XcmsCIELabQueryMax(3X11)NAME
XcmsCIELabQueryMaxC, XcmsCIELabQueryMaxL, XcmsCIELabQuery-
MaxLC, XcmsCIELabQueryMinL - obtain the CIE L*a*b* coordi-
nates
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 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*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 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 6.4 1
XcmsCIELabQueryMax(3X11) XLIB FUNCTIONS XcmsCIELabQueryMax(3X11)
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* coor-
dinates.
The XcmsCIELabQueryMaxL function, given a hue angle and
chroma, finds the point in CIE L*a*b* color space of maxi-
mum 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*) dis-
playable 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 ALSOXcmsCIELuvQueryMaxC(3X11), XcmsTekHVCQueryMaxC(3X11), Xcm-
sQueryBlack(3X11)
Xlib - C Language X Interface
X Version 11 Release 6.4 2
