2004-05-04 04:27:20 -04:00
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Adding wxWidgets class documentation
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2000-03-13 06:20:59 -05:00
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====================================
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This note is aimed at people wishing to add documentation for a
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class to either the main wxWidgets manual, or to their own
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manual.
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2008-02-24 10:48:20 -05:00
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wxWidgets uses Doxygen to process header input files with embedded
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documentation in the form of C++ comments and output in HTML, and XML
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(Doxygen itself can also output Latex, manpages, RTF, PDF etc).
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See http://www.doxygen.org for more info about Doxygen.
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If you want to add documentation of a new class/function to the
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existing manual in docs/doxygen, you need to create a new .h file,
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e.g. myclass.h, under the interface folder, which contains the public
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interface of the new class/function in C++ syntax.
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The documentation can then be added in form of Doxygen comments to
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the header file.
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You may also want to write a separate topic file,
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e.g. docs/doxygen/overviews/myclass.h, and add the entry to
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docs/doxygen/mainpages/topics.h.
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If applicable, also add an entry to one of the docs/doxygen/mainpages/cat_*.h
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files.
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You can generate a first raw version of myclass.h simply taking its
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"real" header and removing all the private and protected sections and
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in general removing everything the user "shouldn't know": i.e. all things
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which are implementation details.
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2000-03-13 06:20:59 -05:00
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2008-02-24 10:48:20 -05:00
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Running Doxygen
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===============
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2008-03-15 08:26:44 -04:00
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First, make sure you have a recent version of Doxygen installed in your system
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(you'll need Doxygen >= 1.5.4).
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2008-03-15 08:26:44 -04:00
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On Unix:
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1) run wxWidgets/docs/doxygen/regen.sh [format-to-generate]
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On Windows:
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1) cd wxWidgets/docs/doxygen
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2) run regen.bat [format-to-generate]
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If you don't specify which format to [re]generate, all output formats will
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be enabled. Possible values for [format-to-generate] are: "html", "chm", "latex",
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"xml" and "all".
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The output of Doxygen is all placed in the wxWidgets/docs/doxygen/out folder.
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Important Dos and Don'ts
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========================
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DO:
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- Doxygen supports both commands in the form \command and @command;
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all wxWidgets documentation uses the @command form.
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Follow strictly this rule.
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- strive to use dedicated Doxygen commands for e.g. notes, lists,
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sections, etc. The "Special commands" page:
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http://www.stack.nl/~dimitri/doxygen/commands.html
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is your friend!
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It's also very important to make a consistent use of the ALIASES
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defined by wxWidgets' Doxyfile. Open that file for more info.
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- when you write true, false and NULL with their C++ semantic meaning,
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then use the @true, @false and @NULL commands.
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- separate different paragraphs with an empty comment line.
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This is important otherwise Doxygen puts everything in the same
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paragraph making the result less readable.
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- leave a blank comment line between a @section, @subsection, @page
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and the next paragraph.
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- test your changes, both reading the generated HTML docs and by looking
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at the "doxygen.log" file produced (which will warn you about any
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eventual mistake found in the comments).
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- quote all the following characters prefixing them with a "@" char:
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@ $ \ & < > # %
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unless they appear inside a @code or @verbatim section
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(you can also use HTML-style escaping, e.g. & rather than @ escaping)
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- when using a Doxygen alias like @itemdef{}, you need to escape the
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comma characters which appear on the first argument, otherwise Doxygen
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will interpret them as the marker of the end of the first argument and
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the beginning of the second argument's text.
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E.g. if you want to define the item "wxEVT_MACRO(id, func)" you need to
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write:
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@itemdef{wxEVT_MACRO(id\, func), This is the description of the macro}
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Also note that you need to escape only the commas of the first argument's
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text; second argument can have up to 10 commas unescaped (see the Doxyfile
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for the trick used to implement this).
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2008-03-10 11:36:23 -04:00
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- for linking use one of:
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=> the @ref command to refer to topic overviews;
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=> the () suffix to refer to function members of the same class you're
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documenting or to refer to global functions or macros;
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=> the classname:: operator to refer to functions of classes different
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from the one you're documenting;
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=> the :: prefix to refer to global variables (e.g. ::wxEmptyString).
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Class names are auto-linked by Doxygen without the need of any explicit
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command.
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DON'T:
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- use jargon, such as 'gonna', or omit the definite article.
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The manual is intended to be a fluent, English document and
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not a collection of rough notes.
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- use non-alphanumeric characters in link anchors.
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- use Doxygen @b @c @e commands when referring to more than a single word;
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in that case you need to use the <b>...</b>, <tt>...</tt>, <em>...</em>
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HTML-style tags instead
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- use HTML style tags for creation of tables or lists.
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Use wx aliases instead like @beginTable, @row2col, @row3col, @endTable and
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@beginDefList, @itemdef, @endDefList, etc.
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See the Doxyfile.inc for more info.
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Documentation comment for a class
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=================================
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Start off with:
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/**
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@class wxMyClass
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@wxheader{myclass.h}
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...here goes the description...
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@beginEventTable
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@event{EVT_SOME_EVENT(id, func)}:
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Description for EVT_SOME_EVENT.
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@endEventTable
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@beginStyleTable
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@style{wxSOME_STYLE}:
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Description for wxSOME_STYLE.
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...
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@endStyleTable
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@beginExtraStyleTable
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@style{wxSOME_EXTRA_STYLE}:
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Description for wxSOME_EXTRA_STYLE.
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...
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@endExtraStyleTable
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@library{wxbase}
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@category{cat_shortcut}
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@nativeimpl{wxgtk, wxmsw, ...}
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@onlyfor{wxgtk, wxmsw, ...}
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@appearance{button.png}
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@stdobjects
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...here goes the list of predefined instances...
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@see ...here goes the see-also list...
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you can make references to topic overviews or other
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manual pages using the @ref command
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*/
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Note that everything *except* the @class, @wxheader, @library and @category
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commands are optionals.
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Documentation comment for a function
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====================================
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2008-02-24 10:48:20 -05:00
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Start off with:
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/**
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...here goes the description of the function....
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@param param1
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...here goes the description for the first parameter of this function
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@param param2
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...here goes the description for the second parameter of this function
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...
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@return
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...here goes the description of what the function returns...
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@note ...here go any eventual notes about this function...
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@remarks ...here go any eventual remarks about this function...
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@see ...here goes the see-also list...
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*/
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Note that the @return, @note, @remarks, @see commands are optional.
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The @param command has an optional attribute specifying the direction of
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the attribute. Possible values are "in" and "out". E.g.
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/**
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* Copies bytes from a source memory area to a destination memory area,
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* where both areas may not overlap.
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* @param[out] dest The memory area to copy to.
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* @param[in] src The memory area to copy from.
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* @param[in] n The number of bytes to copy.
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* @param[in,out] pmisc Used both as input and as output.
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*/
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void func(void *dest, const void *src, size_t n, void *pmisc);
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Documentation comment for a topic overview
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==========================================
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Topic overviews are stored inside the docs/doxygen/overviews folder
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and are completely placed inside a single comment block in the form of:
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2008-02-24 10:48:20 -05:00
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/*!
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@page overview_tname wxSomeStuff overview
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This page provides an overview of the wxSomeStuff and related classes.
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....
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@li @ref overview_tname_intro
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@li @ref overview_tname_details
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...
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<hr>
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@section overview_tname_intro Introduction
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...here goes the introduction to this topic...
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@section overview_tname_details Details
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...here go the details to this topic...
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*/
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2008-02-24 10:48:20 -05:00
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Note that there is a convention in the anchor link names.
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Doxygen in fact requires that for each @page, @section, @subsection, etc tag,
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there is a corresponding link anchor.
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The following conventions are used in wxWidgets doxygen comments:
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1) all "main" pages of the manual (those which are placed in
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docs/doxygen/mainpages) have link anchors which begin with "page_"
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2) all topic overviews (those which are placed in docs/doxygen/overviews) have
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link anchors which begin with "overview_"
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3) all @section, @subsection, @subsubsection tags should have as link anchor
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name the name of the parent section plus a specific word separated with an
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underscore; e.g.:
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/*!
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@page overview_tname wxSomeStuff overview
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@section overview_tname_intro Introduction
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@subsection overview_tname_intro_firstpart First part
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@subsection overview_tname_intro_secondpart Second part
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@subsubsection overview_tname_intro_secondpart_sub Second part subsection
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@subsection overview_tname_intro_thirdpart Third part
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@section overview_tname_details Details
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...
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*/
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=== EOF ===
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Author: FM (along the lines of the previous technote about tex2rtf)
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Version: $Id$
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