XcmsSetWhitePoint, XcmsSetWhiteAdjustProc - modifying CCC attributes
Status XcmsSetWhitePoint(XcmsCCC ccc, XcmsColor
*color);
XcmsWhiteAdjustProc XcmsSetWhiteAdjustProc(XcmsCCC ccc,
XcmsWhiteAdjustProc white_adjust_proc, XPointer
client_data);
- 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.
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.
DisplayOfCCC(3), XcmsCCCOfColormap(3), XcmsConvertColors(3), XcmsCreateCCC(3),
XcmsDefaultCCC(3)
Xlib - C Language X Interface