XcmsCreateCCC(XS) X Version 11 (Release 5) 6 January 1993  XcmsCreateCCC(XS)


 Name

    XcmsCreateCCC - creating and destroying CCCs

 Syntax


    XcmsCCC XcmsCreateCCC(display, screen_number, visual, client_white_point,
                          compression_proc, compression_client_data,
                          white_adjust_proc, white_adjust_client_data)
          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(ccc)
          XcmsCCC ccc;


 Arguments


    display        Specifies the connection to the X server.

    ccc            Specifies the CCC.

    clientwhitepoint
                   Specifies the Client White Point.  If NULL, the Client
                   White Point is to be assumed to be the same as the Screen
                   White Point.  Note that the pixel member is ignored.

    compressionclientdata
                   Specifies client data for use by the gamut compression
                   procedure or NULL.

    compressionproc
                   Specifies the gamut compression procedure that is to be
                   applied when a color lies outside the screen's color
                   gamut.  If NULL and when functions 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.

    screennumber  Specifies the appropriate screen number on the host
                   server.

    visual         Specifies the visual type.

    whiteadjustclientdata
                   Specifies client data for use with the white point adjust-
                   ment procedure or NULL.

    whiteadjustproc
                   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.

 Description

    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.

 See also

    DisplayOfCCC(XS), XcmsCCCOfColormap(XS), XcmsConvertColors(XS),
    XcmsDefaultCCC(XS), XcmsSetWhitePoint(XS)
    Xlib - C Language X Interface