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.ds xT X Toolkit Intrinsics \- C Language Interface
.ds xW Athena X Widgets \- C Language X Toolkit Interface
.ds xL Xlib \- C Language X Interface
.ds xC Inter-Client Communication Conventions Manual
.TH XcmsCIELabQueryMax __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
.SH NAME
XcmsCIELabQueryMaxC, XcmsCIELabQueryMaxL, XcmsCIELabQueryMaxLC, XcmsCIELabQueryMinL \- obtain the CIE L*a*b* coordinates
.SH SYNTAX
.HP
Status XcmsCIELabQueryMaxC\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat
\fIhue_angle\fP\^, XcmsFloat \fIL_star\fP\^, XcmsColor *\fIcolor_return\fP\^);
.HP
Status XcmsCIELabQueryMaxL\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat
\fIhue_angle\fP\^, XcmsFloat \fIchroma\fP\^, XcmsColor *\fIcolor_return\fP\^);
.HP
Status XcmsCIELabQueryMaxLC\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat
\fIhue_angle\fP\^, XcmsColor *\fIcolor_return\fP\^);
.HP
Status XcmsCIELabQueryMinL\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat
\fIhue_angle\fP\^, XcmsFloat \fIchroma\fP\^, XcmsColor *\fIcolor_return\fP\^);
.SH ARGUMENTS
.IP \fIccc\fP 1i
Specifies the CCC.
Note that the CCC's Client White Point and White Point Adjustment procedures
are ignored.
.IP \fIchroma\fP 1i
Specifies the chroma at which to find maximum lightness (MaxL) or minimum lightness (MinL).
.IP \fIcolor_return\fP 1i
Returns the CIE L*a*b* 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.
.IP \fIhue_angle\fP 1i
Specifies the hue angle (in degrees) at which to find maximum chroma (MaxC and MaxLC), maximum lightness (MaxL),
or minimum lightness (MinL).
.IP \fIL_star\fP 1i
Specifies the lightness (L*) at which to find maximum chroma (MaxC).
.SH DESCRIPTION
The
.B 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* coordinates.
.LP
The
.B 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
.B XcmsFailure
return value usually indicates that the given chroma
is beyond maximum for the given hue angle.
.LP
The
.B 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.
.LP
The
.B XcmsCIELabQueryMinL
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*a*b* coordinates.
An
.B XcmsFailure
return value usually indicates that the given chroma
is beyond maximum for the given hue angle.
.SH "SEE ALSO"
XcmsCIELuvQueryMaxC(__libmansuffix__),
XcmsTekHVCQueryMaxC(__libmansuffix__),
XcmsQueryBlack(__libmansuffix__)
.br
\fI\*(xL\fP