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TextFile

with Xlbt_Extension3;  
with Xlbt_Extension4;

package Xlbt_Extension is
------------------------------------------------------------------------------
-- X Library Extensions - Normal User Interface
--
-- Xlbt_Extension - Types dealing with extensions to the X Library and to
-- the X Protocol.
------------------------------------------------------------------------------
-- Copyright 1989 - 1991 by Rational, Santa Clara, California.
-- Copyright 1985 - 1989 by the Massachusetts Institute of Technology
--
--                  All Rights Reserved.
--
-- Permission to use, copy, modify, and distribute this software and its
-- documentation for any purpose and without fee is hereby granted,
-- provided that the above copyright notice(s) appear in all copies and that
-- both that copyright notice(s) and this permission notice appear in
-- supporting documentation, and that the names of MIT or Rational not be
-- used in advertising or publicity pertaining to distribution of the software
-- without specific, written prior permission.
--
-- MIT and Rational disclaim all warranties with regard to this software,
-- including all implied warranties of merchantability and fitness, in no
-- event shall MIT or Rational be liable for any special, indirect or
-- consequential damages or any damages whatsoever resulting from loss of use,
-- data or profits, whether in an action of contract, negligence or other
-- tortious action, arising out of or in connection with the use or performance
-- of this software.
------------------------------------------------------------------------------

--\f

    package E3 renames Xlbt_Extension3;  
    package E4 renames Xlbt_Extension4;

------------------------------------------------------------------------------
-- X_Extension_Number - each extension gets a unique (to this program) number
------------------------------------------------------------------------------

    subtype X_Extension_Number is E4.X_Extension_Number;

    subtype Xen is X_Extension_Number;

    function "=" (A, B : Xen) return Boolean renames E4."=";  
    function "+" (A, B : Xen) return Xen     renames E4."+";  
    function "-" (A, B : Xen) return Xen     renames E4."-";  
    function "-" (A : Xen)    return Xen     renames E4."-";

------------------------------------------------------------------------------
-- X_Ext_Data - Extensions need a way to hang private data on some structures.
------------------------------------------------------------------------------

    subtype X_Ext_Data is E4.X_Ext_Data;

    None_X_Ext_Data : X_Ext_Data renames E4.None_X_Ext_Data;

    function "=" (A, B : X_Ext_Data) return Boolean renames E4."=";

    procedure Free_X_Ext_Data (Ext_Data : in out X_Ext_Data)  
        renames E4.Free_X_Ext_Data;
    ----Free a single X_Ext_Data record.

    procedure Free_X_Ext_Data_List (List : in out X_Ext_Data)  
        renames E4.Free_X_Ext_Data_List;
    ----Free the linked list of X_Ext_Data records.

------------------------------------------------------------------------------
-- X_Ext_Codes - Extension Codes contains structures used by the extension
--               mechanism.
------------------------------------------------------------------------------

    subtype X_Ext_Codes is E3.X_Ext_Codes;

    None_X_Ext_Codes : X_Ext_Codes renames E3.None_X_Ext_Codes;

    function "=" (A, B : X_Ext_Codes) return Boolean renames E3."=";

    procedure Free_X_Ext_Codes (Ext : in out X_Ext_Codes)  
        renames E3.Free_X_Ext_Codes;

------------------------------------------------------------------------------
-- X_Extension - This structure is private to the library.
------------------------------------------------------------------------------

    subtype X_Extension is E3.X_Extension;

    None_X_Extension : X_Extension renames E3.None_X_Extension;

    function "=" (A, B : X_Extension) return Boolean renames E3."=";

    procedure Free_X_Extension (Ext : in out X_Extension)  
        renames E3.Free_X_Extension;
    ----Free a single X_Extension record.

    procedure Free_X_Extension_List (List : in out X_Extension)  
        renames E3.Free_X_Extension_List;
    ----Free a linked list of X_Extension records.

end Xlbt_Extension;