MirOS Manual: XcmsCIELuvQueryMaxC(3), XcmsCIELuvQueryMaxL(3), XcmsCIELuvQueryMaxLC(3), XcmsCIELuvQueryMinL(3)


XcmsCIELuvQueryMaxC(3X11)XLIB FUNCTIONS XcmsCIELuvQueryMaxC(3X11)

NAME

     XcmsCIELuvQueryMaxC, XcmsCIELuvQueryMaxL, XcmsCIELuvQuer-
     yMaxLC, XcmsCIELuvQueryMinL - obtain the CIE L*u*v* coordi-
     nates

SYNTAX

     Status XcmsCIELuvQueryMaxC(XcmsCCC ccc, XcmsFloat hue_angle,
          XcmsFloat L_star, XcmsColor *color_return);

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

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

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

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). or
               minimum lightness (MinL) or hue angle (MaxLC)

     color_return
               Returns the CIE L*u*v* coordinates of maximum
               chroma (MaxC and MaxLC), maximum lightnes (MaxL),
               displayable by the screen for the given hue angle
               and lightness (MaxC), hue angle and chroma (MaxL
               and MinL),. The white point associated with the
               returned color specification is the Screen White
               Point. The value returned in the pixel member is
               undefined. or minimum lightness (MinL)

     hue_angle Specifies the hue angle (in degrees) at which to
               find maximum chroma (MaxC and MaxLC), maximum
               lightness (MaxL),.

     L_star    Specifies the lightness (L*) at which to find max-
               imum 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*) displayable by the screen. It returns this

XFree86                   Version 4.5.0                         1

XcmsCIELuvQueryMaxC(3X11)XLIB FUNCTIONS XcmsCIELuvQueryMaxC(3X11)

     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.

     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*) display-
     able 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(3X11), XcmsTekHVCQueryMaxC(3X11),
     XcmsQueryBlack(3X11)
     Xlib - C Language X Interface

XFree86                   Version 4.5.0                         2

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