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wxWidgets - Cross-Platform GUI Library

Licence

OSI Approved License

wxWidgets is currently licenced under the "wxWindows Library Licence" pending approval of the "wxWidgets Library Licence" which will be identical apart from the name.

The wxWindows Library Licence is essentially the L-GPL (Library General Public Licence), with an exception stating that derived works in binary form may be distributed on the user's own terms. This is a solution that satisfies those who wish to produce GPL'ed software using wxWidgets, and also those producing proprietary software.

Participants in the discussion that led to this decision include the folk from AbiSource, Robert Roebling, Julian Smart, Markus Fleck, Karsten Ballueder, and some advice from Richard Stallman. Richard has confirmed that the new licence is compatible with GPL'ed applications. However, there are no significant restrictions on proprietary applications.

The wxWindows Library Licence has been approved by the Open Source Initiative.

In August 2005, an ambiguity in Clause 2 was removed (replaced "the user's" with "your") and the version bumped to 3.1.

Preamble

The licencing of the wxWidgets library is intended to protect the wxWidgets library, its developers, and its users, so that the considerable investment it represents is not abused.

Under the terms of the original wxWidgets licences, you as a user are not obliged to distribute wxWidgets source code with your products, if you distribute these products in binary form. However, you are prevented from restricting use of the library in source code form, or denying others the rights to use or distribute wxWidgets library source code in the way intended.

The wxWindows Library License establishes the copyright for the code and related material, and it gives you legal permission to copy, distribute and/or modify the library. It also asserts that no warranty is given by the authors for this or derived code.

The core distribution of the wxWidgets library contains files under two different licences:

  • Most files are distributed under the GNU Library General Public License, version 2, with the special exception that you may create and distribute object code versions built from the source code or modified versions of it (even if these modified versions include code under a different licence), and distribute such binaries under your own terms.

  • Most core wxWidgets manuals are made available under the "wxWindows Free Documentation License", which allows you to distribute modified versions of the manuals, such as versions documenting any modifications made by you in your version of the library. However, you may not restrict any third party from reincorporating your changes into the original manuals.

wxWindows Library Licence

              wxWindows Library Licence, Version 3.1
              ======================================

Copyright (c) 1998-2005 Julian Smart, Robert Roebling et al

Everyone is permitted to copy and distribute verbatim copies
of this licence document, but changing it is not allowed.

                     WXWINDOWS LIBRARY LICENCE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public Licence as published by
the Free Software Foundation; either version 2 of the Licence, or (at your
option) any later version.

This library 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 Library General Public
Licence for more details.

You should have received a copy of the GNU Library General Public Licence
along with this software, usually in a file named COPYING.LIB.  If not,
write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
Floor, Boston, MA 02110-1301 USA.

EXCEPTION NOTICE

1. As a special exception, the copyright holders of this library give
permission for additional uses of the text contained in this release of the
library as licenced under the wxWindows Library Licence, applying either
version 3.1 of the Licence, or (at your option) any later version of the
Licence as published by the copyright holders of version 3.1 of the Licence
document.

2. The exception is that you may use, copy, link, modify and distribute
under your own terms, binary object code versions of works based on the
Library.

3. If you copy code from files distributed under the terms of the GNU
General Public Licence or the GNU Library General Public Licence into a
copy of this library, as this licence permits, the exception does not apply
to the code that you add in this way.  To avoid misleading anyone as to the
status of such modified files, you must delete this exception notice from
such code and/or adjust the licensing conditions notice accordingly.

4. If you write modifications of your own for this library, it is your
choice whether to permit this exception to apply to your modifications.  If
you do not wish that, you must delete the exception notice from such code
and/or adjust the licensing conditions notice accordingly.

wxWindows Free Documentation License

              wxWindows Free Documentation Licence, Version 3
              ===============================================

Copyright (c) 1998 Julian Smart, Robert Roebling et al

Everyone is permitted to copy and distribute verbatim copies
of this licence document, but changing it is not allowed.

                 WXWINDOWS FREE DOCUMENTATION LICENCE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

1. Permission is granted to make and distribute verbatim copies of this
manual or piece of documentation provided any copyright notice and this
permission notice are preserved on all copies.

2. Permission is granted to process this file or document through a
document processing system and, at your option and the option of any third
party, print the results, provided a printed document carries a copying
permission notice identical to this one.

3. Permission is granted to copy and distribute modified versions of this
manual or piece of documentation under the conditions for verbatim copying,
provided also that any sections describing licensing conditions for this
manual, such as, in particular, the GNU General Public Licence, the GNU
Library General Public Licence, and any wxWindows Licence are included
exactly as in the original, and provided that the entire resulting derived
work is distributed under the terms of a permission notice identical to
this one.

4. Permission is granted to copy and distribute translations of this manual
or piece of documentation into another language, under the above conditions
for modified versions, except that sections related to licensing, including
this paragraph, may also be included in translations approved by the
copyright holders of the respective licence documents in addition to the
original English.

                          WARRANTY DISCLAIMER

5. BECAUSE THIS MANUAL OR PIECE OF DOCUMENTATION IS LICENSED FREE OF
CHARGE, THERE IS NO WARRANTY FOR IT, TO THE EXTENT PERMITTED BY APPLICABLE
LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
OTHER PARTIES PROVIDE THIS MANUAL OR PIECE OF DOCUMENTATION "AS IS" WITHOUT
WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF
THE MANUAL OR PIECE OF DOCUMENTATION IS WITH YOU.  SHOULD THE MANUAL OR
PIECE OF DOCUMENTATION PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
NECESSARY SERVICING, REPAIR OR CORRECTION.

6. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE MANUAL OR PIECE OF DOCUMENTATION AS PERMITTED ABOVE, BE
LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE MANUAL
OR PIECE OF DOCUMENTATION (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR
DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
OR A FAILURE OF A PROGRAM BASED ON THE MANUAL OR PIECE OF DOCUMENTATION TO
OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.