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/*
* The Progressive Graphics File; http://www.libpgf.org * * $Date: 2006-05-18 16:03:32 +0200 (Thu, 18 May 2006) $ * $Revision: 194 $ * * This file Copyright (C) 2006 xeraina GmbH, Switzerland * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE * as published by the Free Software Foundation; either version 2.1 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ The Progressive Graphics File ============================= For more information see http://www.libpgf.org. There you can find some documents concerning this progressive graphic file codec. This project is hosted on the Sourceforge.net platform. For support and questions, please use the installed mailing list and forums there. The Sourceforge URL of our project is: http://sourceforge.net/projects/libpgf ============================= Version 6.12.24, (Thu, 14 June 2012) Release Notes ------------- 1. The new version is a replacement of version 6.11.42. In case you use the ROI encoding scheme, we strongly encourage using version 6.12.24 instead of version 6.11.42. 2. This version fixes some decoder bugs, sometimes seen in ROI decoding. 3. This version allows a simpler user-data handling, especially for uncached metadata. The following two methods in the class PGFimage are designed for this purpose: GetUserDataPos() returns in an opened PGF image the stream position of the user data area. WriteImage() encodes and writes the image at the current stream position. This method is called after WriteHeader(). In case you want to write uncached metadata into the stream, then do that after WriteHeader() and just before WriteImage(). If you are not interested in writing uncached metadata, then you usually use Write() instead of WriteImage(). WriteHeader() and WriteImage() are called inside of Write(). |