XcmsCIELabQueryMaxL

Syntax

Status XcmsCIELabQueryMaxL(ccc, hue_angle, chroma, color_return)
      XcmsCCC ccc;
      XcmsFloat hue_angle;
      XcmsFloat chroma;
      XcmsColor *color_return;

Arguments

ccc	Specifies the CCC. The CCC's Client White Point and white point adjustment procedures are ignored.
hue_angle	Specifies the hue angle (in degrees) at which to find maximum lightness.
chroma	Specifies the chroma at which to find maximum lightness.
color_return	Returns the CIE L*a*b* coordinates of maximum lightness displayable by the screen for the given hue angle and chroma. The white point associated with the returned color specification is the Screen White Point. The value returned in the pixel member is undefined.

Description

The XcmsCIELabQueryMaxL() 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 XcmsFailure return value usually indicates that the given chroma is beyond maximum for the given hue angle.

See also

XcmsCIELabQueryMaxC(), XcmsCIELabQueryMaxLC(), XcmsCIELabQueryMinL(), XcmsCIELuvQueryMaxC(), XcmsQueryBlack(), XcmsTekHVCQueryMaxC(), "CIELab Queries".

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Christophe Tronche, [email protected]