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XcmsCIELuvQueryMaxC(3X11)
X11R6
NAME
XcmsCIELuvQueryMaxC, XcmsCIELuvQueryMaxL, XcmsCIELuvQueryMaxLC,
XcmsCIELuvQueryMinL - obtain the CIE L*u*v* coordinates
SYNOPSIS
Status XcmsCIELuvQueryMaxC(ccc, hue_angle, L_star, color_return)
XcmsCCC ccc;
XcmsFloat hue_angle;
XcmsFloat L_star;
XcmsColor *color_return;
Status XcmsCIELuvQueryMaxL(ccc, hue_angle, chroma, color_return)
XcmsCCC ccc;
XcmsFloat hue_angle;
XcmsFloat chroma;
XcmsColor *color_return;
Status XcmsCIELuvQueryMaxLC(ccc, hue_angle, color_return)
XcmsCCC ccc;
XcmsFloat hue_angle;
XcmsColor *color_return;
Status XcmsCIELuvQueryMinL(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). or minimum lightness (MinL) or hue angle
(MaxLC)
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 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. or minimum
lightness (MinL)
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*) displayable by
the screen. It returns 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.
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 returns 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(3X11), XcmsTekHVCQueryMaxC(3X11), XcmsQueryBlack(3X11)
Xlib -- C Language X Interface
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Index for Section 3X11 |
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Alphabetical listing for X |
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Top of page |
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