XcmsCreateCCC, XcmsFreeCCC - creating and destroying CCCs
XcmsCCC XcmsCreateCCC(Display *display, int
    screen_number, Visual *visual, XcmsColor
    *client_white_point, XcmsCompressionProc compression_proc,
    XPointer compression_client_data, XcmsWhiteAdjustProc
    white_adjust_proc, XPointer white_adjust_client_data);
void XcmsFreeCCC(XcmsCCC ccc);
  - display
- Specifies the connection to the X server.
- ccc
- Specifies the CCC.
- client_white_point
- Specifies the Client White Point. If NULL is specified, the Client White
      Point is to be assumed to be the same as the Screen White Point. Note that
      the pixel member is ignored.
- compression_client_data
- Specifies client data for use by the gamut compression procedure or
    NULL.
- compression_proc
- Specifies the gamut compression procedure that is to be applied when a
      color lies outside the screen's color gamut. If NULL is specified and a
      function using this CCC must convert a color specification to a
      device-dependent format and encounters a color that lies outside the
      screen's color gamut, that function will return XcmsFailure.
- screen_number
- Specifies the appropriate screen number on the host server.
- visual
- Specifies the visual type.
- white_adjust_client_data
- Specifies client data for use with the white point adjustment procedure or
      NULL.
- white_adjust_proc
- Specifies the white adjustment procedure that is to be applied when the
      Client White Point differs from the Screen White Point. NULL indicates
      that no white point adjustment is desired.
The XcmsCreateCCC function creates a CCC for the specified display,
  screen, and visual.The XcmsFreeCCC function frees the memory used for the
    specified CCC. Note that default CCCs and those currently associated with
    colormaps are ignored.
DisplayOfCCC(3), XcmsCCCOfColormap(3), XcmsConvertColors(3), XcmsDefaultCCC(3),
  XcmsSetWhitePoint(3)
Xlib - C Language X Interface