244 lines
7.4 KiB
Groff
244 lines
7.4 KiB
Groff
.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 X Consortium
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.\"
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.\" Permission is hereby granted, free of charge, to any person obtaining
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.\" a copy of this software and associated documentation files (the
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.\" "Software"), to deal in the Software without restriction, including
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.\" without limitation the rights to use, copy, modify, merge, publish,
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.\" distribute, sublicense, and/or sell copies of the Software, and to
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.\" permit persons to whom the Software is furnished to do so, subject to
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.\" the following conditions:
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of the X Consortium shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from the X Consortium.
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.\"
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.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991 by
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.\" Digital Equipment Corporation
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.\"
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.\" Portions Copyright \(co 1990, 1991 by
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.\" Tektronix, Inc.
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.\"
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.\" Permission to use, copy, modify and distribute this documentation for
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.\" any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice appears in all copies and that both that copyright notice
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.\" and this permission notice appear in all copies, and that the names of
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.\" Digital and Tektronix not be used in in advertising or publicity pertaining
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.\" to this documentation without specific, written prior permission.
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.\" Digital and Tektronix makes no representations about the suitability
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.\" of this documentation for any purpose.
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.\" It is provided ``as is'' without express or implied warranty.
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.\"
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.\"
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.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.ny0
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.TH XcmsTekHVCQueryMaxC __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS"
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.SH NAME
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XcmsTekHVCQueryMaxC, XcmsTekHVCQueryMaxV, XcmsTekHVCQueryMaxVC, XcmsTekHVCQueryMaxVSamples, XcmsTekHVCQueryMinV \- obtain the TekHVC coordinates
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.SH SYNTAX
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.HP
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Status XcmsTekHVCQueryMaxC\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat \fIhue\fP\^,
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XcmsFloat \fIvalue\fP\^, XcmsColor *\fIcolor_return\fP\^);
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.HP
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Status XcmsTekHVCQueryMaxV\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat \fIhue\fP\^,
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XcmsFloat \fIchroma\fP\^, XcmsColor *\fIcolor_return\fP\^);
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.HP
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Status XcmsTekHVCQueryMaxVC\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat \fIhue\fP\^,
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XcmsColor *\fIcolor_return\fP\^);
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.HP
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Status XcmsTekHVCQueryMaxVSamples\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat
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\fIhue\fP\^, XcmsColor \fIcolors_return[]\fP\^, unsigned int
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\fInsamples\fP\^);
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.HP
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Status XcmsTekHVCQueryMinV\^(\^XcmsCCC \fIccc\fP\^, XcmsFloat \fIhue\fP\^,
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XcmsFloat \fIchroma\fP\^, XcmsColor *\fIcolor_return\fP\^);
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.SH ARGUMENTS
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.IP \fIccc\fP 1i
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Specifies the CCC.
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Note that the CCC's Client White Point and White Point Adjustment procedures
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are ignored.
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.ds Ch maximum Value (MaxV)
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.IP \fIchroma\fP 1i
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Specifies the chroma at which to find \*(Ch.
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.IP \fIcolors_return\fP 1i
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Returns nsamples of color specifications in XcmsTekHVC
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such that the Chroma is the maximum attainable for the Value and Hue.
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The white point associated with the returned
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color specification is the Screen White Point.
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The value returned in the pixel member is undefined.
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.ds Lc maximum Chroma along with the actual Hue and Value (MaxC), \
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maximum Value along with the Hue and Chroma (MaxV), \
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color specification in XcmsTekHVC for the maximum Chroma, \
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the Value at which that maximum Chroma is reached and actual Hue (MaxVC) \
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or minimum Value and the actual Hue and Chroma (MinL)
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.ds lC maximum Chroma (MaxC and MaxVC), maximum Value (MaxV), or \
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minimum Value (MinL)
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.IP \fIcolor_return\fP 1i
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Returns the \*(Lc at which the \*(lC was found.
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The white point associated with the returned
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color specification is the Screen White Point.
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The value returned in the pixel member is undefined.
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.ds Hu in which to find the maximum Chroma (MaxC and MaxVC), \
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maximum Value (MaxV), the maximum Chroma/Value samples (MaxVSamples), \
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or the minimum Value (MinL)
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.IP \fIhue\fP 1i
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Specifies the Hue \*(Hu.
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.IP \fInsamples\fP 1i
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Specifies the number of samples.
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.ds Va maximum Chroma (MaxC) or minimum Value (MinL)
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.IP \fIvalue\fP 1i
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Specifies the Value in which to find the \*(Va.
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.SH DESCRIPTION
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The
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.ZN XcmsTekHVCQueryMaxC
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function, given a Hue and Value,
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determines the maximum Chroma in TekHVC color space
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displayable by the screen.
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It returns the maximum Chroma along with the actual Hue
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and Value at which the maximum Chroma was found.
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.LP
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The
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.ZN XcmsTekHVCQueryMaxV
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function, given a Hue and Chroma,
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determines the maximum Value in TekHVC color space
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displayable by the screen.
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It returns the maximum Value and the actual Hue and Chroma
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at which the maximum Value was found.
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.LP
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The
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.ZN XcmsTekHVCQueryMaxVC
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function, given a Hue,
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determines the maximum Chroma in TekHVC color space displayable by the screen
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and the Value at which that maximum Chroma is reached.
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It returns the maximum Chroma,
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the Value at which that maximum Chroma is reached,
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and the actual Hue for which the maximum Chroma was found.
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.LP
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The
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.ZN XcmsTekHVCQueryMaxVSamples
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returns nsamples of maximum Value, the Chroma at which that maximum Value
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is reached, and the actual Hue for which the maximum Chroma was found.
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These sample points may then be used to plot the maximum Value/Chroma
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boundary of the screen's color gamut for the specified Hue in TekHVC color
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space.
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.LP
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The
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.ZN XcmsTekHVCQueryMinV
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function, given a Hue and Chroma,
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determines the minimum Value in TekHVC color space displayable by the screen.
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It returns the minimum Value and the actual Hue and Chroma at which
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the minimum Value was found.
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.SH "SEE ALSO"
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XcmsCIELabQueryMaxC(__libmansuffix__),
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XcmsCIELuvQueryMaxC(__libmansuffix__),
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XcmsQueryBlack(__libmansuffix__)
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.br
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\fI\*(xL\fP
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