/////////////////////////////////////////////////////////////////////////////
// Name:        introduction.h
// Purpose:     Introduction page of the Doxygen manual
// Author:      wxWidgets team
// RCS-ID:      $Id$
// Licence:     wxWindows license
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/*!

 @page introduction_page Introduction

 @li @ref whatis
 @li @ref why
 @li @ref requirements
 @li @ref where
 @li @ref acknowledgements


 <hr>


 @section whatis What is wxWidgets?

 wxWidgets is a C++ framework providing GUI (Graphical User
 Interface) and other facilities on more than one platform.  Version 2 and higher
 currently support all desktop versions of MS Windows, Unix with GTK+ 1.x or 2.x,
 Unix with Motif, Unix with just X11, Unix with DirectFB, Mac OS X, OS/2.

 wxWidgets was originally developed at the Artificial Intelligence
 Applications Institute, University of Edinburgh, for internal use,
 and was first made publicly available in 1992.
 Version 2 is a vastly improved version written and maintained by
 Julian Smart, Robert Roebling, Vadim Zeitlin, Vaclav Slavik and many others.

 This manual contains a class reference and topic overviews.
 For a selection of wxWidgets tutorials, please see the documentation page on the \urlref{wxWidgets web site}{http://www.wxwidgets.org}.

 Please note that in the following, ``MS Windows" often refers to all
 platforms related to Microsoft Windows, including 32-bit and 64-bit
 variants, unless otherwise stated. All trademarks are acknowledged.

 @section why Why another cross-platform development tool?

 wxWidgets was developed to provide a cheap and flexible way to maximize
 investment in GUI application development.  While a number of commercial
 class libraries already existed for cross-platform development,
 none met all of the following criteria:

 \begin{enumerate}\itemsep=0pt
 \item low price;
 \item source availability;
 \item simplicity of programming;
 \item support for a wide range of compilers.
 \end{enumerate}

 Since wxWidgets was started, several other free or almost-free
 GUI frameworks have emerged. However, none has the range of
 features, flexibility, documentation and the well-established
 development team that wxWidgets has.

 As open source software, wxWidgets has benefited from comments,
 ideas, bug fixes, enhancements and the sheer enthusiasm of
 users. This gives wxWidgets a certain advantage over its
 commercial competitors (and over free libraries without an
 independent development team), plus a robustness against the
 transience of one individual or company. This openness and
 availability of source code is especially important when the
 future of thousands of lines of application code may depend upon
 the longevity of the underlying class library.

 Version 2 goes much further than previous versions in terms of
 generality and features, allowing applications to be produced
 that are often indistinguishable from those produced using
 single-platform toolkits such as Motif, GTK+ and MFC.

 The importance of using a platform-independent class library
 cannot be overstated, since GUI application development is very
 time-consuming, and sustained popularity of particular GUIs
 cannot be guaranteed. Code can very quickly become obsolete if
 it addresses the wrong platform or audience.  wxWidgets helps to
 insulate the programmer from these winds of change. Although
 wxWidgets may not be suitable for every application (such as an
 OLE-intensive program), it provides access to most of the
 functionality a GUI program normally requires, plus many extras
 such as network programming, PostScript output, and HTML
 rendering; and it can of course be extended as needs dictate.
 As a bonus, it provides a far cleaner and easier programming
 interface than the native APIs. Programmers may find it
 worthwhile to use wxWidgets even if they are developing on only
 one platform.

 It is impossible to sum up the functionality of wxWidgets in a few paragraphs, but
 here are some of the benefits:

 \begin{itemize}\itemsep=0pt
 \item Low cost (free, in fact!)
 \item You get the source.
 \item Available on a variety of popular platforms.
 \item Works with almost all popular C++ compilers and Python.
 \item Over 70 example programs.
 \item Over 1000 pages of printable and on-line documentation.
 \item Simple-to-use, object-oriented API.
 \item Flexible event system.
 \item Graphics calls include lines, rounded rectangles, splines, polylines, etc.
 \item Constraint-based and sizer-based layouts.
 \item Print/preview and document/view architectures.
 \item Toolbar, notebook, tree control, advanced list control classes.
 \item PostScript generation under Unix, normal MS Windows printing on the PC.
 \item MDI (Multiple Document Interface) support.
 \item Can be used to create DLLs under Windows, dynamic libraries on Unix.
 \item Common dialogs for file browsing, printing, colour selection, etc.
 \item Under MS Windows, support for creating metafiles and copying
 them to the clipboard.
 \item An API for invoking help from applications.
 \item Ready-to-use HTML window (supporting a subset of HTML).
 \item Network support via a family of socket and protocol classes.
 \item Support for platform independent image processing.
 \item Built-in support for many file formats (BMP, PNG, JPEG, GIF, XPM, PNM, PCX).
 \item Includes Tex2RTF, to allow you to produce your own documentation
 in Windows Help, HTML and Word RTF formats.
 \end{itemize}

 @section requirements wxWidgets requirements

 To make use of wxWidgets, you currently need one of the following setups.

 (a) MS-Windows:

 \begin{enumerate}\itemsep=0pt
 \item A 32-bit or 64-bit PC running MS Windows.
 \item A Windows compiler: MS Visual C++ (embedded Visual C++ for wxWinCE
 port), Borland C++, Watcom C++, Cygwin, MinGW, Metrowerks CodeWarrior,
 Digital Mars C++. See {\tt install.txt} for details about compiler
 version supported.
 \end{enumerate}

 (b) Unix:

 \begin{enumerate}\itemsep=0pt
 \item Almost any C++ compiler, including GNU C++ and many Unix vendors
 compilers such as Sun CC, HP-UX aCC or SGI mipsPro.
 \item Almost any Unix workstation, and one of: GTK+ 2.4 or higher (GTK+ 1.2.10
 may still be supported but wxGTK1 port is not maintained any longer and lacks
 many features of wxGTK2), Motif 1.2 or higher or Lesstif. If using the wxX11
 port, no such widget set is required.
 \end{enumerate}

 (c) Mac OS/Mac OS X:

 \begin{enumerate}\itemsep=0pt
 \item A PowerPC or Intel Mac running Mac OS X 10.3 or higher
 \item The Apple Developer Tools (eg. GNU C++) or MetroWerks CodeWarrior (not
 actively supported)
 \end{enumerate}

 Under all platforms it's recommended to have large amounts of free hard disk
 space. The exact amount needed depends on the port, compiler and build
 configurations but to give an example, a debug build of the library may take up
 to 500MB.

 @section where Availability and location of wxWidgets

 \winhelponly{wxWidgets is available by anonymous FTP and World Wide Web
 from ftp://biolpc22.york.ac.uk/pub and/or http://www.wxwidgets.org.}
 \winhelpignore{wxWidgets is available by anonymous FTP and World Wide Web
 from \urlref{ftp://biolpc22.york.ac.uk/pub}{ftp://biolpc22.york.ac.uk/pub}
 and/or \urlref{http://www.wxwidgets.org}{http://www.wxwidgets.org}.}

 You can also buy a CD-ROM using the form on the Web site.

 @section acknowledgements Acknowledgements

 The following is the list of the core, active developers of wxWidgets which keep
 it running and have provided an invaluable, extensive and high-quality amount of
 changes over the many of years of wxWidgets' life:

 \begin{description}\itemsep=0pt
 \item Julian Smart
 \item Vadim Zeitlin
 \item Robert Roebling
 \item Robin Dunn
 \item Stefan Csomor
 \item Vaclav Slavik
 \item Paul Cornett
 \item Wlodzimierz `ABX' Skiba
 \item Chris Elliott
 \item David Elliott
 \item Kevin Hock
 \item Stefan Neis
 \item Michael Wetherell
 \end{description}

 We would particularly like to thank the following peoples for their contributions
 to wxWidgets, and the many others who have been involved in the project over the years.
 Apologies for any unintentional omissions from this alphabetic list:

 Yiorgos Adamopoulos, Jamshid Afshar, Alejandro Aguilar-Sierra, AIAI,
 Patrick Albert, Karsten Ballueder, Mattia Barbon, Michael Bedward,
 Kai Bendorf, Yura Bidus, Keith Gary Boyce, Chris Breeze, Pete Britton,
 Ian Brown, C. Buckley, Marco Cavallini, Dmitri Chubraev, Robin Corbet, Cecil Coupe,
 Andrew Davison, Gilles Depeyrot, Neil Dudman, Hermann Dunkel, Jos van Eijndhoven,
 Tom Felici, Thomas Fettig, Matthew Flatt, Pasquale Foggia, Josep Fortiana, Todd Fries,
 Dominic Gallagher, Guillermo Rodriguez Garcia, Wolfram Gloger, Norbert Grotz,
 Stefan Gunter, Bill Hale, Patrick Halke, Stefan Hammes, Guillaume Helle,
 Harco de Hilster, Cord Hockemeyer, Markus Holzem, Olaf Klein, Leif Jensen,
 Bart Jourquin, Guilhem Lavaux, Ron Lee, Jan Lessner, Nicholas Liebmann,
 Torsten Liermann, Per Lindqvist, Francesco Montorsi, Thomas Runge, Tatu M\"{a}nnist\"{o},
 Scott Maxwell, Thomas Myers, Oliver Niedung, Ryan Norton, Hernan Otero,
 Ian Perrigo, Timothy Peters, Giordano Pezzoli, Harri Pasanen, Thomaso Paoletti,
 Garrett Potts, Marcel Rasche, Dino Scaringella, Jobst Schmalenbach, Arthur Seaton,
 Paul Shirley, Stein Somers, Petr Smilauer, Neil Smith, Kari Syst\"{a}, George Tasker,
 Arthur Tetzlaff-Deas, Jonathan Tonberg, Jyrki Tuomi, Janos Vegh, Andrea Venturoli,
 David Webster, Otto Wyss, Xiaokun Zhu, Edward Zimmermann.

 Many thanks also to AIAI for being willing to release the original version of
 wxWidgets into the public domain, and to our patient partners.

 `Graphplace', the basis for the wxGraphLayout library, is copyright Dr. Jos
 T.J. van Eijndhoven of Eindhoven University of Technology. The code has
 been used in wxGraphLayout (not in wxWidgets anymore) with his permission.

 We also acknowledge the author of XFIG, the excellent Unix drawing tool,
 from the source of which we have borrowed some spline drawing code.
 His copyright is included below.

 {\it XFig2.1 is copyright (c) 1985 by Supoj Sutanthavibul. Permission to
 use, copy, modify, distribute, and sell this software and its
 documentation 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 M.I.T. not be used in advertising or
 publicity pertaining to distribution of the software without specific,
 written prior permission.  M.I.T. makes no representations about the
 suitability of this software for any purpose.  It is provided ``as is''
 without express or implied warranty.}

*/