bionic (3) XcmsSetWhitePoint.3.gz

NAME

       XcmsSetWhitePoint, XcmsSetWhiteAdjustProc - modifying CCC attributes

SYNTAX

       Status XcmsSetWhitePoint(XcmsCCC ccc, XcmsColor *color);

       XcmsWhiteAdjustProc XcmsSetWhiteAdjustProc(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 specified CCC with the newly specified procedure and client data and then returns the old procedure.

SEE ALSO

       DisplayOfCCC(3), XcmsCCCOfColormap(3), XcmsConvertColors(3), XcmsCreateCCC(3), XcmsDefaultCCC(3)
       Xlib - C Language X Interface