hpux man page for xcmscielabquerymax

XcmsCIELabQueryMax*()													     XcmsCIELabQueryMax*()

Name
  XcmsCIELabQueryMaxC,	XcmsCIELabQueryMaxL, XcmsCIELabQueryMaxLC, XcmsCIELabQueryMinL - obtain the bounds of the target screen's color gamut
  in terms of CIE L*a*b* coordinates.

Synopsis
  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 color conversion context.  Note that the CCC's Client  White	Point  and  White  Point  Adjustment  procedures  are
	    ignored.

  chroma    Specifies the CIELAB psychometric 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 lightness (MaxL), or minimum lightness (MinL) dis-
	    playable 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 mem-
	    ber is undefined.

  hue_angle Specifies the CIELAB psychometric 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).

Returns
  Zero on failure, non-zero on success.

Availability
  Release 5 and later.

Description
  XcmsCIELabQueryMaxC() finds the point of maximum chroma displayable by the screen at the given hue angle and lightness.

  XcmsCIELabQueryMaxL()  finds the point in CIELAB color space of maximum lightness (L*) displayable by the screen at the given hue angle and
  chroma.  An XcmsFailure return value usually indicates that the given chroma is beyond maximum for the given hue angle.

  XcmsCIELabQueryMaxLC() finds the point of maximum chroma displayable by the screen at the given hue angle.

  XcmsCIELabQueryMinL() finds the point of minimum lightness (L*) displayable by the screen at the given hue angle and chroma.	An  XcmsFail-
  ure return value usually indicates that the given chroma is beyond maximum for the given hue angle.

  All these functions return a point in CIE L*a*b* color space coordinates.

See Also
  XcmsCIELuvQueryMaxC(),  XcmsCIELuvQueryMaxL(),  XcmsCIELuvQueryMaxLC(),  XcmsCIELuvQueryMinL(), XcmsTekHVCQueryMaxC(), XcmsTekHVCQueryMaxL,
  XcmsTekHVCQueryMaxLC, XcmsTekHVCQueryMinL, XcmsQueryBlack(), XcmsQueryBlue(), XcmsQueryGreen(), XcmsQueryRed(), XcmsQueryWhite().

Xlib - Device-independent Color 											     XcmsCIELabQueryMax*()