NAME XcmsCIELuvQueryMaxC, XcmsCIELuvQueryMaxL, XcmsCIELuvQueryMaxLC, Xcm‐
sCIELuvQueryMinL - obtain the CIE L*u*v* coordinates SYNTAX Status XcmsCIELuvQueryMaxC(XcmsCCC ccc, XcmsFloat hueangle, XcmsFloat Lstar, XcmsColor *colorreturn); Status XcmsCIELuvQueryMaxL(XcmsCCC ccc, XcmsFloat hueangle, XcmsFloat chroma, XcmsColor *colorreturn); Status XcmsCIELuvQueryMaxLC(XcmsCCC ccc, XcmsFloat hueangle, XcmsColor *colorreturn); Status XcmsCIELuvQueryMinL(XcmsCCC ccc, XcmsFloat hueangle, XcmsFloat chroma, XcmsColor *colorreturn); 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). colorreturn 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. hueangle Specifies the hue angle (in degrees) at which to find maximum chroma (MaxC and MaxLC), maximum lightness (MaxL), or minimum lightness (MinL). Lstar 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 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(3), XcmsTekHVCQueryMaxC(3), XcmsQueryBlack(3)
Xlib - C Language X Interface X Version 11 libX11 1.6.5 XcmsCIELuvQueryMaxC(3)