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# Licenses for Code Used in Qt

Qt contains a little code that is not under the QPL, the GPL, or the Qt Commercial License Agreement, but rather under specific highly permissive license from the original authors. This page lists the licenses used for that code, names the authors, and links to the points where it is used.

Trolltech gratefully acknowledges these and others contribution to Qt. We recommend that all programs that use Qt also acknowledge these contributions, and quote all these license statements in an appendix to the documentation.

Copyright (C) 1989, 1991 by Jef Poskanzer.

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 appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. This software is provided "as is" without express or implied warranty.

- QImage::smoothScale

Copyright 1995, Trinity College Computing Center. Written by David Chappell.

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 appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. This software is provided "as is" without express or implied warranty.

TrueType font support. These functions allow PPR to generate PostScript fonts from Microsoft compatible TrueType font files.

The functions in this file do most of the work to convert a TrueType font to a type 3 PostScript font.

Most of the material in this file is derived from a program called "ttf2ps" which L. S. Ng posted to the usenet news group "comp.sources.postscript". The author did not provide a copyright notice or indicate any restrictions on use.

Last revised 11 July 1995.

\sa

- QPrinter

Copyright 1996 Daniel Dardailler.

Permission to use, copy, modify, distribute, and sell this software for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Daniel Dardailler not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. Daniel Dardailler makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty.

Modifications Copyright 1999 Matt Koss, under the same license as above.

- Drag and Drop

Qt supports GIF reading if it is configured that way during installation (see qgif.h). If it is, we are required to state that "The Graphics Interchange Format(c) is the Copyright property of CompuServe Incorporated. GIF(sm) is a Service Mark property of CompuServe Incorporated." \sa

- QImageDecoder