XcmsSetWhitePoint(3X11) XLIB FUNCTIONS XcmsSetWhitePoint(3X11)NAME
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 ALSODisplayOfCCC(3X11), XcmsCCCOfColormap(3X11), XcmsConvert-
Colors(3X11), XcmsCreateCCC(3X11), XcmsDefaultCCC(3X11)
Xlib - C Language X Interface
X Version 11 Release 6.4 1