XcmsSetWhitePoint, XcmsSetWhiteAdjustProc - modifying CCC
       attributes


SYNTAX

       Status XcmsSetWhitePoint(ccc, color)
             XcmsCCC ccc;
             XcmsColor *color;

       XcmsWhiteAdjustProc XcmsSetWhiteAdjustProc(ccc,
       white_adjust_proc, client_data)
             XcmsCCC ccc;
             XcmsWhiteAdjustProc white_adjust_proc;
             XPointer client_data;


ARGUMENTS

       ccc       Specifies the CCC.

       client_data
                 Specifies client data for the white point
                 adjustment procedure or NULL.

       color     Specifies the new Client White Point.

       white_adjust_proc
                 Specifies the white point adjustment procedure.


DESCRIPTION

       The XcmsSetWhitePoint function changes the Client White
       Point in the specified CCC.  Note that the pixel member is
       ignored and that the color specification is left unchanged
       upon return.  The format for the new white point must be
       XcmsCIEXYZFormat, XcmsCIEuvYFormat, XcmsCIExyYFormat, or
       XcmsUndefinedFormat.  If the color argument is NULL, this
       function sets the format component of the Client White
       Point specification to XcmsUndefinedFormat, indicating
       that the Client White Point is assumed to be the same as
       the Screen White Point.

       This function returns nonzero status if the format for the
       new white point is valid; otherwise, it returns zero.


       The XcmsSetWhiteAdjustProc function first sets the white
       point adjustment procedure and client data in the speci-
       fied CCC with the newly specified procedure and client
       data and then returns the old procedure.


SEE ALSO

       DisplayOfCCC(3X11), XcmsCCCOfColormap(3X11), XcmsConvert-
       Colors(3X11), XcmsCreateCCC(3X11), XcmsDefaultCCC(3X11)
       Xlib - C Language X Interface