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