Create dgnlibp.h

/******************************************************************************
 * $Id: dgnlibp.h,v 1.18 2003/06/27 14:50:53 warmerda Exp $
 *
 * Project:  Microstation DGN Access Library
 * Purpose:  Internal (privatE) datastructures, and prototypes for DGN Access 
 *           Library.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2000, Avenza Systems Inc, http://www.avenza.com/
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 ******************************************************************************
 *
 * $Log: dgnlibp.h,v $
 * Revision 1.18  2003/06/27 14:50:53  warmerda
 * avoid warnings
 *
 * Revision 1.17  2003/05/21 03:42:01  warmerda
 * Expanded tabs
 *
 * Revision 1.16  2003/01/20 20:07:19  warmerda
 * added ascii to rad50 prototype
 *
 * Revision 1.15  2002/11/12 19:44:51  warmerda
 * fixed up DGN_WRITE_INT32 macro
 *
 * Revision 1.14  2002/11/11 20:37:07  warmerda
 * added write related stuff
 *
 * Revision 1.13  2002/03/14 21:39:09  warmerda
 * added DGNLoadRawElement, max_element_count
 *
 * Revision 1.12  2002/02/22 22:17:42  warmerda
 * Ensure that components of complex chain/shapes are spatially selected
 * based on the decision made for their owner (header).
 *
 * Revision 1.11  2002/02/06 20:32:33  warmerda
 * handle improbably large elements
 *
 * Revision 1.10  2002/01/21 20:52:45  warmerda
 * added spatial filter support
 *
 * Revision 1.9  2002/01/15 06:39:08  warmerda
 * added default PI value
 *
 * Revision 1.8  2001/12/19 15:29:56  warmerda
 * added preliminary cell header support
 *
 * Revision 1.7  2001/08/21 03:01:39  warmerda
 * added raw_data support
 *
 * Revision 1.6  2001/03/07 13:56:44  warmerda
 * updated copyright to be held by Avenza Systems
 *
 * Revision 1.5  2001/01/16 18:12:18  warmerda
 * keep color table in DGNInfo
 *
 * Revision 1.4  2001/01/10 16:12:18  warmerda
 * added extents capture
 *
 * Revision 1.3  2000/12/28 21:28:43  warmerda
 * added element index support
 *
 * Revision 1.2  2000/12/14 17:10:57  warmerda
 * implemented TCB, Ellipse, TEXT
 *
 * Revision 1.1  2000/11/28 19:03:47  warmerda
 * New
 *
 */