Configuration

Format

A configuration file is a free-form ASCII text file with a structure that is similar to that of a Makefile, with the default name Doxyfile. It is parsed by doxygen. The file may contain tabs and newlines for formatting purposes. The statements in the file are case-sensitive. Comments may be placed anywhere within the file (except within quotes). Comments beginning with two hash characters (##) are kept when updating the configuration file and are placed in front of the TAG they are in front of. Comments beginning with two hash characters (##) at the beginning of the configuration file are also kept and placed at the beginning of the file. Comments beginning with two hash characters (##) at the end of the configuration file are also kept and placed at the end of the file. Comments begin with the hash character (#) and ends at the end of the line.

The file essentially consists of a list of assignment statements. Each statement consists of a TAG_NAME written in capitals, followed by the equal sign (=) and one or more values. If the same tag is assigned more than once, the last assignment overwrites any earlier assignment. For tags that take a list as their argument, the += operator can be used instead of = to append new values to the list. Values are sequences of non-blanks. If the value should contain one or more blanks it must be surrounded by quotes ("..."). Multiple lines can be concatenated by inserting a backslash (\) as the last character of a line.

Environment variables can be expanded using the pattern $(ENV_VARIABLE_NAME). A small example: DOT_PATH =$(YOUR_DOT_PATH)


You can also include part of a configuration file from another configuration file using a @INCLUDE tag as follows:

@INCLUDE = config_file_name


The include file is searched in the current working directory. You can also specify a list of directories that should be searched before looking in the current working directory. Do this by putting a @INCLUDE_PATH tag with these paths before the @INCLUDE tag, e.g.:

@INCLUDE_PATH = my_config_dir


The configuration options can be divided into several categories. Below is an alphabetical index of the tags that are recognized followed by the descriptions of the tags grouped by category.

Project related configuration options

DOXYFILE_ENCODING

This tag specifies the encoding used for all characters in the configuration file that follow. The default is UTF-8 which is also the encoding used for all text before the first occurrence of this tag. Doxygen uses libiconv (or the iconv built into libc) for the transcoding. See https://www.gnu.org/software/libiconv/ for the list of possible encodings.

The default value is: UTF-8.

PROJECT_NAME

The PROJECT_NAME tag is a single word (or a sequence of words surrounded by double-quotes, unless you are using Doxywizard) that should identify the project for which the documentation is generated. This name is used in the title of most generated pages and in a few other places.

The default value is: My Project.

PROJECT_NUMBER

The PROJECT_NUMBER tag can be used to enter a project or revision number. This could be handy for archiving the generated documentation or if some version control system is used.

PROJECT_BRIEF

Using the PROJECT_BRIEF tag one can provide an optional one line description for a project that appears at the top of each page and should give viewer a quick idea about the purpose of the project. Keep the description short.

PROJECT_LOGO

With the PROJECT_LOGO tag one can specify a logo or an icon that is included in the documentation. The maximum height of the logo should not exceed 55 pixels and the maximum width should not exceed 200 pixels. Doxygen will copy the logo to the output directory.

OUTPUT_DIRECTORY

The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path into which the generated documentation will be written. If a relative path is entered, it will be relative to the location where doxygen was started. If left blank the current directory will be used.

CREATE_SUBDIRS

If the CREATE_SUBDIRS tag is set to YES then doxygen will create up to 4096 sub-directories (in 2 levels) under the output directory of each output format and will distribute the generated files over these directories. Enabling this option can be useful when feeding doxygen a huge amount of source files, where putting all generated files in the same directory would otherwise causes performance problems for the file system. Adapt CREATE_SUBDIRS_LEVEL to control the number of sub-directories.

The default value is: NO.

CREATE_SUBDIRS_LEVEL

Controls the number of sub-directories that will be created when CREATE_SUBDIRS tag is set to YES. Level 0 represents 16 directories, and every level increment doubles the number of directories, resulting in 4096 directories at level 8 which is the default and also the maximum value. The sub-directories are organized in 2 levels, the first level always has a fixed numer of 16 directories.

Minimum value: 0, maximum value: 8, default value: 8.

This tag requires that the tag CREATE_SUBDIRS is set to YES.

ALLOW_UNICODE_NAMES

If the ALLOW_UNICODE_NAMES tag is set to YES, doxygen will allow non-ASCII characters to appear in the names of generated files. If set to NO, non-ASCII characters will be escaped, for example _xE3_x81_x84 will be used for Unicode U+3044.

The default value is: NO.

OUTPUT_LANGUAGE

The OUTPUT_LANGUAGE tag is used to specify the language in which all documentation generated by doxygen is written. Doxygen will use this information to generate all constant output in the proper language.

Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Bulgarian, Catalan, Chinese, Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States), Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages), Korean, Korean-en (Korean with English messages), Latvian, Lithuanian, Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian, Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish, Ukrainian and Vietnamese.

The default value is: English.

BRIEF_MEMBER_DESC

If the BRIEF_MEMBER_DESC tag is set to YES, doxygen will include brief member descriptions after the members that are listed in the file and class documentation (similar to Javadoc). Set to NO to disable this.

The default value is: YES.

REPEAT_BRIEF

If the REPEAT_BRIEF tag is set to YES, doxygen will prepend the brief description of a member or function before the detailed description
Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the brief descriptions will be completely suppressed.

The default value is: YES.

ABBREVIATE_BRIEF

This tag implements a quasi-intelligent brief description abbreviator that is used to form the text in various listings. Each string in this list, if found as the leading text of the brief description, will be stripped from the text and the result, after processing the whole list, is used as the annotated text. Otherwise, the brief description is used as-is. If left blank, the following values are used ($name is automatically replaced with the name of the entity): The$name class, The $name widget, The$name file, is, provides, specifies, contains, represents, a, an and the.

ALWAYS_DETAILED_SEC

If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then doxygen will generate a detailed section even if there is only a brief description.

The default value is: NO.

INLINE_INHERITED_MEMB

If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all inherited members of a class in the documentation of that class as if those members were ordinary class members. Constructors, destructors and assignment operators of the base classes will not be shown.

The default value is: NO.

FULL_PATH_NAMES

If the FULL_PATH_NAMES tag is set to YES, doxygen will prepend the full path before files name in the file list and in the header files. If set to NO the shortest path that makes the file name unique will be used

The default value is: YES.

STRIP_FROM_PATH

The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path. Stripping is only done if one of the specified strings matches the left-hand part of the path. The tag can be used to show relative paths in the file list. If left blank the directory from which doxygen is run is used as the path to strip.
Note that you can specify absolute paths here, but also relative paths, which will be relative from the directory where doxygen is started.

This tag requires that the tag FULL_PATH_NAMES is set to YES.

STRIP_FROM_INC_PATH

The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the path mentioned in the documentation of a class, which tells the reader which header file to include in order to use a class. If left blank only the name of the header file containing the class definition is used. Otherwise one should specify the list of include paths that are normally passed to the compiler using the -I flag.

SHORT_NAMES

If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but less readable) file names. This can be useful is your file systems doesn't support long names like on DOS, Mac, or CD-ROM.

The default value is: NO.

JAVADOC_AUTOBRIEF

If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the first line (until the first dot) of a Javadoc-style comment as the brief description. If set to NO, the Javadoc-style will behave just like regular Qt-style comments (thus requiring an explicit @brief command for a brief description.)

The default value is: NO.

JAVADOC_BANNER

If the JAVADOC_BANNER tag is set to YES then doxygen will interpret a line such as

/***************

as being the beginning of a Javadoc-style comment "banner". If set to NO, the Javadoc-style will behave just like regular comments and it will not be interpreted by doxygen.

The default value is: NO.

QT_AUTOBRIEF

If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first line (until the first dot) of a Qt-style comment as the brief description. If set to NO, the Qt-style will behave just like regular Qt-style comments (thus requiring an explicit \brief command for a brief description.)

The default value is: NO.

MULTILINE_CPP_IS_BRIEF

The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a multi-line C++ special comment block (i.e. a block of //! or /// comments) as a brief description. This used to be the default behavior. The new default is to treat a multi-line C++ comment block as a detailed description. Set this tag to YES if you prefer the old behavior instead.
Note that setting this tag to YES also means that rational rose comments are not recognized any more.

The default value is: NO.

PYTHON_DOCSTRING

By default Python docstrings are displayed as preformatted text and doxygen's special commands cannot be used. By setting PYTHON_DOCSTRING to NO the doxygen's special commands can be used and the contents of the docstring documentation blocks is shown as doxygen documentation.

The default value is: YES.

INHERIT_DOCS

If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the documentation from any documented member that it re-implements.

The default value is: YES.

SEPARATE_MEMBER_PAGES

If the SEPARATE_MEMBER_PAGES tag is set to YES then doxygen will produce a new page for each member. If set to NO, the documentation of a member will be part of the file/class/namespace that contains it.

The default value is: NO.

TAB_SIZE

The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen uses this value to replace tabs by spaces in code fragments.

Minimum value: 1, maximum value: 16, default value: 4.

ALIASES

This tag can be used to specify a number of aliases that act as commands in the documentation. An alias has the form:

 name=value


 "sideeffect=@par Side Effects:^^"


will allow you to put the command \sideeffect (or @sideeffect) in the documentation, which will result in a user-defined paragraph with heading "Side Effects:". Note that you cannot put \n's in the value part of an alias to insert newlines (in the resulting output). You can put ^^ in the value part of an alias to insert a newline as if a physical newline was in the original file. When you need a literal { or } or , in the value part of an alias you have to escape them by means of a backslash (\), this can lead to conflicts with the commands \{ and \} for these it is advised to use the version @{ and @} or use a double escape (\\{ and \\})

OPTIMIZE_OUTPUT_FOR_C

Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources only. Doxygen will then generate output that is more tailored for C. For instance, some of the names that are used will be different. The list of all members will be omitted, etc.

The default value is: NO.

OPTIMIZE_OUTPUT_JAVA

Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or Python sources only. Doxygen will then generate output that is more tailored for that language. For instance, namespaces will be presented as packages, qualified scopes will look different, etc.

The default value is: NO.

OPTIMIZE_FOR_FORTRAN

Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran sources. Doxygen will then generate output that is tailored for Fortran.

The default value is: NO.

OPTIMIZE_OUTPUT_VHDL

Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL sources. Doxygen will then generate output that is tailored for VHDL.

The default value is: NO.

OPTIMIZE_OUTPUT_SLICE

Set the OPTIMIZE_OUTPUT_SLICE tag to YES if your project consists of Slice sources only. Doxygen will then generate output that is more tailored for that language. For instance, namespaces will be presented as modules, types will be separated into more groups, etc.

The default value is: NO.

EXTENSION_MAPPING

Doxygen selects the parser to use depending on the extension of the files it parses. With this tag you can assign which parser to use for a given extension. Doxygen has a built-in mapping, but you can override or extend it using this tag. The format is ext=language, where ext is a file extension, and language is one of the parsers supported by doxygen: IDL, Java, JavaScript, Csharp (C#), C, C++, Lex, D, PHP, md (Markdown), Objective-C, Python, Slice, VHDL, Fortran (fixed format Fortran: FortranFixed, free formatted Fortran: FortranFree, unknown formatted Fortran: Fortran. In the later case the parser tries to guess whether the code is fixed or free formatted code, this is the default for Fortran type files).

For instance to make doxygen treat .inc files as Fortran files (default is PHP), and .f files as C (default is Fortran), use: inc=Fortran f=C.

Note: For files without extension you can use no_extension as a placeholder.
Note that for custom extensions you also need to set FILE_PATTERNS otherwise the files are not read by doxygen. When specifying no_extension you should add * to the FILE_PATTERNS.

MARKDOWN_SUPPORT

If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments according to the Markdown format, which allows for more readable documentation. See https://daringfireball.net/projects/markdown/ for details. The output of markdown processing is further processed by doxygen, so you can mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in case of backward compatibilities issues.

The default value is: YES.

TOC_INCLUDE_HEADINGS

When the TOC_INCLUDE_HEADINGS tag is set to a non-zero value, all headings up to that level are automatically included in the table of contents, even if they do not have an id attribute.

Note
This feature currently applies only to Markdown headings.

Minimum value: 0, maximum value: 99, default value: 5.

This tag requires that the tag MARKDOWN_SUPPORT is set to YES.

AUTOLINK_SUPPORT

When enabled doxygen tries to link words that correspond to documented classes, or namespaces to their corresponding documentation. Such a link can be prevented in individual cases by putting a % sign in front of the word or globally by setting AUTOLINK_SUPPORT to NO.

The default value is: YES.

BUILTIN_STL_SUPPORT

If you use STL classes (i.e. std::string, std::vector, etc.) but do not want to include (a tag file for) the STL sources as input, then you should set this tag to YES in order to let doxygen match functions declarations and definitions whose arguments contain STL classes (e.g. func(std::string); versus func(std::string) {}). This also make the inheritance and collaboration diagrams that involve STL classes more complete and accurate.

The default value is: NO.

CPP_CLI_SUPPORT

If you use Microsoft's C++/CLI language, you should set this option to YES to enable parsing support.

The default value is: NO.

SIP_SUPPORT

Set the SIP_SUPPORT tag to YES if your project consists of sip sources only. Doxygen will parse them like normal C++ but will assume all classes use public instead of private inheritance when no explicit protection keyword is present.

The default value is: NO.

IDL_PROPERTY_SUPPORT

For Microsoft's IDL there are propget and propput attributes to indicate getter and setter methods for a property. Setting this option to YES will make doxygen to replace the get and set methods by a property in the documentation. This will only work if the methods are indeed getting or setting a simple type. If this is not the case, or you want to show the methods anyway, you should set this option to NO.

The default value is: YES.

DISTRIBUTE_GROUP_DOC

If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC tag is set to YES then doxygen will reuse the documentation of the first member in the group (if any) for the other members of the group. By default all members of a group must be documented explicitly.

The default value is: NO.

GROUP_NESTED_COMPOUNDS

If one adds a struct or class to a group and this option is enabled, then also any nested class or struct is added to the same group. By default this option is disabled and one has to add nested compounds explicitly via \ingroup.

The default value is: NO.

SUBGROUPING

Set the SUBGROUPING tag to YES to allow class member groups of the same type (for instance a group of public functions) to be put as a subgroup of that type (e.g. under the Public Functions section). Set it to NO to prevent subgrouping. Alternatively, this can be done per class using the \nosubgrouping command.

The default value is: YES.

INLINE_GROUPED_CLASSES

When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions are shown inside the group in which they are included (e.g. using \ingroup) instead of on a separate page (for HTML and Man pages) or section (for and RTF).
Note that this feature does not work in combination with SEPARATE_MEMBER_PAGES.

The default value is: NO.

INLINE_SIMPLE_STRUCTS

When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions with only public data fields or simple typedef fields will be shown inline in the documentation of the scope in which they are defined (i.e. file, namespace, or group documentation), provided this scope is documented. If set to NO, structs, classes, and unions are shown on a separate page (for HTML and Man pages) or section (for and RTF).

The default value is: NO.

TYPEDEF_HIDES_STRUCT

When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or enum is documented as struct, union, or enum with the name of the typedef. So typedef struct TypeS {} TypeT, will appear in the documentation as a struct with name TypeT. When disabled the typedef will appear as a member of a file, namespace, or class. And the struct will be named TypeS. This can typically be useful for C code in case the coding convention dictates that all compound types are typedef'ed and only the typedef is referenced, never the tag name.

The default value is: NO.

LOOKUP_CACHE_SIZE

The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This cache is used to resolve symbols given their name and scope. Since this can be an expensive process and often the same symbol appears multiple times in the code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small doxygen will become slower. If the cache is too large, memory is wasted. The cache size is given by this formula: . The valid range is 0..9, the default is 0, corresponding to a cache size of symbols. At the end of a run doxygen will report the cache usage and suggest the optimal cache size from a speed point of view.

Minimum value: 0, maximum value: 9, default value: 0.

NUM_PROC_THREADS

The NUM_PROC_THREADS specifies the number of threads doxygen is allowed to use during processing. When set to 0 doxygen will based this on the number of cores available in the system. You can set it explicitly to a value larger than 0 to get more control over the balance between CPU load and processing speed. At this moment only the input processing can be done using multiple threads. Since this is still an experimental feature the default is set to 1, which effectively disables parallel processing. Please report any issues you encounter. Generating dot graphs in parallel is controlled by the DOT_NUM_THREADS setting.

Minimum value: 0, maximum value: 32, default value: 1.

Build related configuration options

EXTRACT_ALL

If the EXTRACT_ALL tag is set to YES, doxygen will assume all entities in documentation are documented, even if no documentation was available. Private class members and static file members will be hidden unless the EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.

Note
This will also disable the warnings about undocumented members that are normally produced when WARNINGS is set to YES.

The default value is: NO.

EXTRACT_PRIVATE

If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will be included in the documentation.

The default value is: NO.

EXTRACT_PRIV_VIRTUAL

If the EXTRACT_PRIV_VIRTUAL tag is set to YES, documented private virtual methods of a class will be included in the documentation.

The default value is: NO.

EXTRACT_PACKAGE

If the EXTRACT_PACKAGE tag is set to YES, all members with package or internal scope will be included in the documentation.

The default value is: NO.

EXTRACT_STATIC

If the EXTRACT_STATIC tag is set to YES, all static members of a file will be included in the documentation.

The default value is: NO.

EXTRACT_LOCAL_CLASSES

If the EXTRACT_LOCAL_CLASSES tag is set to YES, classes (and structs) defined locally in source files will be included in the documentation. If set to NO, only classes defined in header files are included. Does not have any effect for Java sources.

The default value is: YES.

EXTRACT_LOCAL_METHODS

This flag is only useful for Objective-C code. If set to YES, local methods, which are defined in the implementation section but not in the interface are included in the documentation. If set to NO, only methods in the interface are included.

The default value is: NO.

EXTRACT_ANON_NSPACES

If this flag is set to YES, the members of anonymous namespaces will be extracted and appear in the documentation as a namespace called 'anonymous_namespace{file}', where file will be replaced with the base name of the file that contains the anonymous namespace. By default anonymous namespace are hidden.

The default value is: NO.

RESOLVE_UNNAMED_PARAMS

If this flag is set to YES, the name of an unnamed parameter in a declaration will be determined by the corresponding definition. By default unnamed parameters remain unnamed in the output.

The default value is: YES.

HIDE_UNDOC_MEMBERS

If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all undocumented members inside documented classes or files. If set to NO these members will be included in the various overviews, but no documentation section is generated. This option has no effect if EXTRACT_ALL is enabled.

The default value is: NO.

HIDE_UNDOC_CLASSES

If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all undocumented classes that are normally visible in the class hierarchy. If set to NO, these classes will be included in the various overviews. This option has no effect if EXTRACT_ALL is enabled.

The default value is: NO.

HIDE_FRIEND_COMPOUNDS

If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend declarations. If set to NO, these declarations will be included in the documentation.

The default value is: NO.

HIDE_IN_BODY_DOCS

If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any documentation blocks found inside the body of a function. If set to NO, these blocks will be appended to the function's detailed documentation block.

The default value is: NO.

INTERNAL_DOCS

The INTERNAL_DOCS tag determines if documentation that is typed after a \internal command is included. If the tag is set to NO then the documentation will be excluded. Set it to YES to include the internal documentation.

The default value is: NO.

CASE_SENSE_NAMES

With the correct setting of option CASE_SENSE_NAMES doxygen will better be able to match the capabilities of the underlying filesystem.

In case the filesystem is case sensitive (i.e. it supports files in the same directory whose names only differ in casing), the option must be set to YES to properly deal with such files in case they appear in the input.

For filesystems that are not case sensitive the option should be set to NO to properly deal with output files written for symbols that only differ in casing, such as for two classes, one named CLASS and the other named Class, and to also support references to files without having to specify the exact matching casing.

On Windows (including Cygwin) and MacOS, users should typically set this option to NO, whereas on Linux or other Unix flavors it should typically be set to YES.

The default value is: system dependent.

HIDE_SCOPE_NAMES

If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with their full class and namespace scopes in the documentation. If set to YES, the scope will be hidden.

The default value is: NO.

HIDE_COMPOUND_REFERENCE

If the HIDE_COMPOUND_REFERENCE tag is set to NO (default) then doxygen will append additional text to a page's title, such as Class Reference. If set to YES the compound reference will be hidden.

The default value is: NO.

SHOW_HEADERFILE

If the SHOW_HEADERFILE tag is set to YES then the documentation for a class will show which file needs to be included to use the class.

The default value is: YES.

SHOW_INCLUDE_FILES

If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of the files that are included by a file in the documentation of that file.

The default value is: YES.

SHOW_GROUPED_MEMB_INC

If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each grouped member an include statement to the documentation, telling the reader which file to include in order to use the member.

The default value is: NO.

FORCE_LOCAL_INCLUDES

If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include files with double quotes in the documentation rather than with sharp brackets.

The default value is: NO.

INLINE_INFO

If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the documentation for inline members.

The default value is: YES.

SORT_MEMBER_DOCS

If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the (detailed) documentation of file and class members alphabetically by member name. If set to NO, the members will appear in declaration order.

The default value is: YES.

SORT_BRIEF_DOCS

If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief descriptions of file, namespace and class members alphabetically by member name. If set to NO, the members will appear in declaration order. Note that this will also influence the order of the classes in the class list.

The default value is: NO.

SORT_MEMBERS_CTORS_1ST

If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the (brief and detailed) documentation of class members so that constructors and destructors are listed first. If set to NO the constructors will appear in the respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.

Note
If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief member documentation.
If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting detailed member documentation.

The default value is: NO.

SORT_GROUP_NAMES

If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy of group names into alphabetical order. If set to NO the group names will appear in their defined order.

The default value is: NO.

SORT_BY_SCOPE_NAME

If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by fully-qualified names, including namespaces. If set to NO, the class list will be sorted only by class name, not including the namespace part.

Note
This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
This option applies only to the class list, not to the alphabetical list.

The default value is: NO.

STRICT_PROTO_MATCHING

If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper type resolution of all parameters of a function it will reject a match between the prototype and the implementation of a member function even if there is only one candidate or it is obvious which candidate to choose by doing a simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still accept a match between prototype and implementation in such cases.

The default value is: NO.

GENERATE_TODOLIST

The GENERATE_TODOLIST tag can be used to enable (YES) or disable (NO) the todo list. This list is created by putting \todo commands in the documentation.

The default value is: YES.

GENERATE_TESTLIST

The GENERATE_TESTLIST tag can be used to enable (YES) or disable (NO) the test list. This list is created by putting \test commands in the documentation.

The default value is: YES.

GENERATE_BUGLIST

The GENERATE_BUGLIST tag can be used to enable (YES) or disable (NO) the bug list. This list is created by putting \bug commands in the documentation.

The default value is: YES.

GENERATE_DEPRECATEDLIST

The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or disable (NO) the deprecated list. This list is created by putting \deprecated commands in the documentation.

The default value is: YES.

ENABLED_SECTIONS

The ENABLED_SECTIONS tag can be used to enable conditional documentation sections, marked by \if <section_label> ... \endif and \cond <section_label> ... \endcond blocks.

MAX_INITIALIZER_LINES

The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the initial value of a variable or macro / define can have for it to appear in the documentation. If the initializer consists of more lines than specified here it will be hidden. Use a value of 0 to hide initializers completely. The appearance of the value of individual variables and macros / defines can be controlled using \showinitializer or \hideinitializer command in the documentation regardless of this setting.

Minimum value: 0, maximum value: 10000, default value: 30.

SHOW_USED_FILES

Set the SHOW_USED_FILES tag to NO to disable the list of files generated at the bottom of the documentation of classes and structs. If set to YES, the list will mention the files that were used to generate the documentation.

The default value is: YES.

SHOW_FILES

Set the SHOW_FILES tag to NO to disable the generation of the Files page. This will remove the Files entry from the Quick Index and from the Folder Tree View (if specified).

The default value is: YES.

SHOW_NAMESPACES

Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces page. This will remove the Namespaces entry from the Quick Index and from the Folder Tree View (if specified).

The default value is: YES.

FILE_VERSION_FILTER

The FILE_VERSION_FILTER tag can be used to specify a program or script that doxygen should invoke to get the current version for each file (typically from the version control system). Doxygen will invoke the program by executing (via popen()) the command command input-file, where command is the value of the FILE_VERSION_FILTER tag, and input-file is the name of an input file provided by doxygen. Whatever the program writes to standard output is used as the file version.

Example of using a shell script as a filter for Unix:

 FILE_VERSION_FILTER = "/bin/sh versionfilter.sh"


Example shell script for CVS:

#!/bin/sh
cvs status $1 | sed -n 's/^[ \]*Working revision:[ \t]*\‍([0-9][0-9\.]*\‍).*/\1/p'  Example shell script for Subversion: #!/bin/sh svn stat -v$1 | sed -n 's/^[ A-Z?\*|!]\{1,15\}/r/;s/ \{1,15\}/\/r/;s/ .*//p'


Example filter for ClearCase:

FILE_VERSION_FILTER = "cleartool desc -fmt \%Vn"


LAYOUT_FILE

The LAYOUT_FILE tag can be used to specify a layout file which will be parsed by doxygen. The layout file controls the global structure of the generated output files in an output format independent way. To create the layout file that represents doxygen's defaults, run doxygen with the -l option. You can optionally specify a file name after the option, if omitted DoxygenLayout.xml will be used as the name of the layout file. See also section Changing the layout of pages for information.
Note that if you run doxygen from a directory containing a file called DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE tag is left empty.

CITE_BIB_FILES

The CITE_BIB_FILES tag can be used to specify one or more bib files containing the reference definitions. This must be a list of .bib files. The .bib extension is automatically appended if omitted. This requires the bibtex tool to be installed. See also https://en.wikipedia.org/wiki/BibTeX for more info. For the style of the bibliography can be controlled using LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the search path. See also \cite for info how to create references.

Configuration options related to warning and progress messages

QUIET

The QUIET tag can be used to turn on/off the messages that are generated to standard output by doxygen. If QUIET is set to YES this implies that the messages are off.

The default value is: NO.

WARNINGS

The WARNINGS tag can be used to turn on/off the warning messages that are generated to standard error (stderr) by doxygen. If WARNINGS is set to YES this implies that the warnings are on.
Tip: Turn warnings on while writing the documentation.

The default value is: YES.

WARN_IF_UNDOCUMENTED

If the WARN_IF_UNDOCUMENTED tag is set to YES then doxygen will generate warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag will automatically be disabled.

The default value is: YES.

WARN_IF_DOC_ERROR

If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for potential errors in the documentation, such as documenting some parameters in a documented function twice, or documenting parameters that don't exist or using markup commands wrongly.

The default value is: YES.

WARN_IF_INCOMPLETE_DOC

If WARN_IF_INCOMPLETE_DOC is set to YES, doxygen will warn about incomplete function parameter documentation. If set to NO, doxygen will accept that some parameters have no documentation without warning.

The default value is: YES.

WARN_NO_PARAMDOC

This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that are documented, but have no documentation for their parameters or return value. If set to NO, doxygen will only warn about wrong parameter documentation, but not about the absence of documentation. If EXTRACT_ALL is set to YES then this flag will automatically be disabled. See also WARN_IF_INCOMPLETE_DOC

The default value is: NO.

WARN_AS_ERROR

If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when a warning is encountered. If the WARN_AS_ERROR tag is set to FAIL_ON_WARNINGS then doxygen will continue running as if WARN_AS_ERROR tag is set to NO, but at the end of the doxygen process doxygen will return with a non-zero status.

Possible values are: NO, YES and FAIL_ON_WARNINGS.

The default value is: NO.

WARN_FORMAT

The WARN_FORMAT tag determines the format of the warning messages that doxygen can produce. The string should contain the $file, $line, and $text tags, which will be replaced by the file and line number from which the warning originated and the warning text. Optionally the format may contain $version, which will be replaced by the version of the file (if it could be obtained via FILE_VERSION_FILTER)

WARN_LINE_FORMAT

The default value is: $file:$line: $text. WARN_LINE_FORMAT In the $text part of the WARN_FORMAT command it is possible that a reference to a more specific place is given. To make it easier to jump to this place (outside of doxygen) the user can define a custom "cut" / "paste" string.

Example:

  WARN_LINE_FORMAT = "'vi $file +$line'"
WARN_FORMAT

The default value is: at line $line of file$file.

WARN_LOGFILE

The WARN_LOGFILE tag can be used to specify a file to which warning and error messages should be written. If left blank the output is written to standard error (stderr). In case the file specified cannot be opened for writing the warning and error messages are written to standard error. When as file - is specified the warning and error messages are written to standard output (stdout).

Configuration options related to the input files

INPUT

The INPUT tag is used to specify the files and/or directories that contain documented source files. You may enter file names like myfile.cpp or directories like /usr/src/myproject. Separate the files or directories with spaces. See also FILE_PATTERNS and EXTENSION_MAPPING

Note
If this tag is empty the current directory is searched.

INPUT_ENCODING

This tag can be used to specify the character encoding of the source files that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses libiconv (or the iconv built into libc) for the transcoding. See the libiconv documentation for the list of possible encodings.

The default value is: UTF-8.

FILE_PATTERNS

If the value of the INPUT tag contains directories, you can use the FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and *.h) to filter out the source-files in the directories.
Note that for custom extensions or not directly supported extensions you also need to set EXTENSION_MAPPING for the extension otherwise the files are not read by doxygen.
Note the list of default checked file patterns might differ from the list of default file extension mappings.
If left blank the following patterns are tested: *.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii, *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp, *.h++, *.l, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown, *.md, *.mm, *.dox (to be provided as doxygen C comment), *.py, *.pyw, *.f90, *.f95, *.f03, *.f08, *.f18, *.f, *.for, *.vhd, *.vhdl, *.ucf, *.qsf and *.ice.

RECURSIVE

The RECURSIVE tag can be used to specify whether or not subdirectories should be searched for input files as well.

The default value is: NO.

EXCLUDE

The EXCLUDE tag can be used to specify files and/or directories that should be excluded from the INPUT source files. This way you can easily exclude a subdirectory from a directory tree whose root is specified with the INPUT tag.
Note that relative paths are relative to the directory from which doxygen is run.

EXCLUDE_SYMLINKS

The EXCLUDE_SYMLINKS tag can be used to select whether or not files or directories that are symbolic links (a Unix file system feature) are excluded from the input.

The default value is: NO.

EXCLUDE_PATTERNS

If the value of the INPUT tag contains directories, you can use the EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude certain files from those directories.
Note that the wildcards are matched against the file with absolute path, so to exclude all test directories for example use the pattern */test/*

EXCLUDE_SYMBOLS

The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names (namespaces, classes, functions, etc.) that should be excluded from the output. The symbol name can be a fully qualified name, a word, or if the wildcard * is used, a substring. Examples: ANamespace, AClass, ANamespace::AClass, ANamespace::*Test
Note that the wildcards are matched against the file with absolute path, so to exclude all test directories use the pattern */test/*

EXAMPLE_PATH

The EXAMPLE_PATH tag can be used to specify one or more files or directories that contain example code fragments that are included (see the \include command).

EXAMPLE_PATTERNS

If the value of the EXAMPLE_PATH tag contains directories, you can use the EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and *.h) to filter out the source-files in the directories. If left blank all files are included.

EXAMPLE_RECURSIVE

If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be searched for input files to be used with the \include or \dontinclude commands irrespective of the value of the RECURSIVE tag.

The default value is: NO.

IMAGE_PATH

The IMAGE_PATH tag can be used to specify one or more files or directories that contain images that are to be included in the documentation (see the \image command).

INPUT_FILTER

The INPUT_FILTER tag can be used to specify a program that doxygen should invoke to filter for each input file. Doxygen will invoke the filter program by executing (via popen()) the command:
<filter> <input-file>
where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the name of an input file. Doxygen will then use the output that the filter program writes to standard output. If FILTER_PATTERNS is specified, this tag will be ignored.
Note that the filter must not add or remove lines; it is applied before the code is scanned, but not when the output code is generated. If lines are added or removed, the anchors will not be placed correctly.
Note that for custom extensions or not directly supported extensions you also need to set EXTENSION_MAPPING for the extension otherwise the files are not properly processed by doxygen.

FILTER_PATTERNS

The FILTER_PATTERNS tag can be used to specify filters on a per file pattern basis. Doxygen will compare the file name with each pattern and apply the filter if there is a match. The filters are a list of the form: pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how filters are used. If the FILTER_PATTERNS tag is empty or if none of the patterns match the file name, INPUT_FILTER is applied.
Note that for custom extensions or not directly supported extensions you also need to set EXTENSION_MAPPING for the extension otherwise the files are not properly processed by doxygen.

FILTER_SOURCE_FILES

If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using INPUT_FILTER) will also be used to filter the input files that are used for producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).

The default value is: NO.

FILTER_SOURCE_PATTERNS

The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file pattern. A pattern will override the setting for FILTER_PATTERN (if any) and it is also possible to disable source filtering for a specific pattern using *.ext= (so without naming a filter).

This tag requires that the tag FILTER_SOURCE_FILES is set to YES.

USE_MDFILE_AS_MAINPAGE

If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that is part of the input, its contents will be placed on the main page (index.html). This can be useful if you have a project on for instance GitHub and want to reuse the introduction page also for the doxygen output.

Configuration options related to source browsing

SOURCE_BROWSER

If the SOURCE_BROWSER tag is set to YES then a list of source files will be generated. Documented entities will be cross-referenced with these sources.
Note: To get rid of all source code in the generated output, make sure that also VERBATIM_HEADERS is set to NO.

The default value is: NO.

INLINE_SOURCES

Setting the INLINE_SOURCES tag to YES will include the body of functions, classes and enums directly into the documentation.

The default value is: NO.

STRIP_CODE_COMMENTS

Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any special comment blocks from generated source code fragments. Normal C, C++ and Fortran comments will always remain visible.

The default value is: YES.

REFERENCED_BY_RELATION

If the REFERENCED_BY_RELATION tag is set to YES then for each documented entity all documented functions referencing it will be listed.

The default value is: NO.

REFERENCES_RELATION

If the REFERENCES_RELATION tag is set to YES then for each documented function all documented entities called/used by that function will be listed.

The default value is: NO.

REFERENCES_LINK_SOURCE

If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set to YES then the hyperlinks from functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will link to the documentation.

The default value is: YES.

SOURCE_TOOLTIPS

If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the source code will show a tooltip with additional information such as prototype, brief description and links to the definition and documentation. Since this will make the HTML file larger and loading of large files a bit slower, you can opt to disable this feature.

The default value is: YES.

This tag requires that the tag SOURCE_BROWSER is set to YES.

USE_HTAGS

If the USE_HTAGS tag is set to YES then the references to source code will point to the HTML generated by the htags(1) tool instead of doxygen built-in source browser. The htags tool is part of GNU's global source tagging system (see https://www.gnu.org/software/global/global.html). You will need version 4.8.6 or higher.
To use it do the following:

1. Install the latest version of global
2. Enable SOURCE_BROWSER and USE_HTAGS in the configuration file
3. Make sure the INPUT points to the root of the source tree
4. Run doxygen as normal
Doxygen will invoke htags (and that will in turn invoke gtags), so these tools must be available from the command line (i.e. in the search path).
The result: instead of the source browser generated by doxygen, the links to source code will now point to the output of htags.

The default value is: NO.

This tag requires that the tag SOURCE_BROWSER is set to YES.

VERBATIM_HEADERS

If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a verbatim copy of the header file for each class for which an include is specified. Set to NO to disable this.

Section \class.

The default value is: YES.

CLANG_ASSISTED_PARSING

If the CLANG_ASSISTED_PARSING tag is set to YES then doxygen will use the clang parser for more accurate parsing at the cost of reduced performance. This can be particularly helpful with template rich C++ code for which doxygen's built-in parser lacks the necessary type information.

Note
The availability of this option depends on whether or not doxygen was generated with the -Duse_libclang=ON option for CMake.

The default value is: NO.

CLANG_ADD_INC_PATHS

If the CLANG_ASSISTED_PARSING tag is set to YES and the CLANG_ADD_INC_PATHS tag is set to YES then doxygen will add the directory of each input to the include path.

The default value is: YES.

This tag requires that the tag CLANG_ASSISTED_PARSING is set to YES.

CLANG_OPTIONS

If clang assisted parsing is enabled you can provide the compiler with command line options that you would normally use when invoking the compiler. Note that the include paths will already be set by doxygen for the files and directories specified with INPUT and INCLUDE_PATH.

This tag requires that the tag CLANG_ASSISTED_PARSING is set to YES.

CLANG_DATABASE_PATH

If clang assisted parsing is enabled you can provide the clang parser with the path to the directory containing a file called compile_commands.json. This file is the compilation database containing the options used when the source files were built. This is equivalent to specifying the -p option to a clang tool, such as clang-check. These options will then be passed to the parser. Any options specified with CLANG_OPTIONS will be added as well.

Note
The availability of this option depends on whether or not doxygen was generated with the -Duse_libclang=ON option for CMake.

Configuration options related to the alphabetical class index

ALPHABETICAL_INDEX

If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all compounds will be generated. Enable this if the project contains a lot of classes, structs, unions or interfaces.

The default value is: YES.

IGNORE_PREFIX

In case all classes in a project start with a common prefix, all classes will be put under the same header in the alphabetical index. The IGNORE_PREFIX tag can be used to specify a prefix (or a list of prefixes) that should be ignored while generating the index headers.

This tag requires that the tag ALPHABETICAL_INDEX is set to YES.

Configuration options related to the HTML output

GENERATE_HTML

If the GENERATE_HTML tag is set to YES, doxygen will generate HTML output

The default value is: YES.

HTML_OUTPUT

The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a relative path is entered the value of OUTPUT_DIRECTORY will be put in front of it.

The default directory is: html.

This tag requires that the tag GENERATE_HTML is set to YES.

HTML_FILE_EXTENSION

The HTML_FILE_EXTENSION tag can be used to specify the file extension for each generated HTML page (for example: .htm, .php, .asp).

The default value is: .html.

This tag requires that the tag GENERATE_HTML is set to YES.

HTML_HEADER

The HTML_HEADER tag can be used to specify a user-defined HTML header file for each generated HTML page. If the tag is left blank doxygen will generate a standard header.
To get valid HTML the header file that includes any scripts and style sheets that doxygen needs, which is dependent on the configuration options used (e.g. the setting GENERATE_TREEVIEW). It is highly recommended to start with a default header using

doxygen -w html new_header.html new_footer.html new_stylesheet.css YourConfigFile


and then modify the file new_header.html.

See also section Doxygen usage for information on how to generate the default header that doxygen normally uses.

Note
The header is subject to change so you typically have to regenerate the default header when upgrading to a newer version of doxygen. The following markers have a special meaning inside the header and footer:
$title will be replaced with the title of the page. $datetime
will be replaced with current the date and time.
$date will be replaced with the current date. $year
will be replaces with the current year.
$doxygenversion will be replaced with the version of doxygen $projectname
will be replaced with the name of the project (see PROJECT_NAME)
$projectnumber will be replaced with the project number (see PROJECT_NUMBER) $projectbrief
will be replaced with the project brief description (see PROJECT_BRIEF)
$projectlogo will be replaced with the project logo (see PROJECT_LOGO) $generatedby
will be replaced with the output language dependent version of the text "Generated by" or when the HTML_TIMESTAMP is set by the output language dependent version of the text "Generated on $datetime for $projectname by".
$stylesheet will be replaced with the setting of HTML_STYLESHEET unless it is empty or the file in which case it is replaced by the default setting doxygen.css. $extrastylesheet
will be replaced with the setting of HTML_EXTRA_STYLESHEET including the required HTML tags for each extra stylesheet.
$treeview will be replaced with links to the javascript and style sheets needed for the navigation tree (or an empty string when GENERATE_TREEVIEW is disabled). $search
will be replaced with a links to the javascript and style sheets needed for the search engine (or an empty string when SEARCHENGINE is disabled).
$searchbox will be replaced with the HTML code needed for the search box to be shown (or an empty string when SEARCHENGINE is disabled). $mathjax
will be replaced with a links to the javascript and style sheets needed for the MathJax feature (or an empty string when USE_MATHJAX is disabled).
$relpath^ If CREATE_SUBDIRS is enabled, the command $relpath^ can be used to produce a relative path to the root of the HTML output directory, e.g. use $relpath^doxygen.css, to refer to the standard style sheet. $navpath
will be replaced with a path as required by GENERATE_TREEVIEW

To cope with differences in the layout of the header and footer that depend on configuration settings, the header can also contain special blocks that will be copied to the output or skipped depending on the configuration. Such blocks have the following form:

 <!--BEGIN BLOCKNAME-->
Some context copied when condition BLOCKNAME holds
<!--END BLOCKNAME-->
<!--BEGIN !BLOCKNAME-->
Some context copied when condition BLOCKNAME does not hold
<!--END !BLOCKNAME-->


The following block names are supported:

DISABLE_INDEX
Content within this block is copied to the output if the DISABLE_INDEX option is enabled (so when the index is disabled).
GENERATE_TREEVIEW
Content within this block is copied to the output if the GENERATE_TREEVIEW option is enabled.
SEARCHENGINE
Content within this block is copied to the output if the SEARCHENGINE option is enabled.
PROJECT_NAME
Content within the block is copied to the output if the PROJECT_NAME option is not empty.
PROJECT_NUMBER
Content within the block is copied to the output if the PROJECT_NUMBER option is not empty.
PROJECT_BRIEF
Content within the block is copied to the output if the PROJECT_BRIEF option is not empty.
PROJECT_LOGO
Content within the block is copied to the output if the PROJECT_LOGO option is not empty.
FULL_SIDEBAR
Content within the block is copied to the output if the FULL_SIDEBAR, DISABLE_INDEX and GENERATE_TREEVIEW options are all enabled.
TITLEAREA
Content within this block is copied to the output if a title is visible at the top of each page. This is the case if either PROJECT_NAME, PROJECT_BRIEF, PROJECT_LOGO is filled in or if both DISABLE_INDEX and SEARCHENGINE are enabled.

This tag requires that the tag GENERATE_HTML is set to YES.

HTML_FOOTER

The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each generated HTML page. If the tag is left blank doxygen will generate a standard footer.

See HTML_HEADER for more information on how to generate a default footer and what special commands can be used inside the footer.

See also section Doxygen usage for information on how to generate the default footer that doxygen normally uses.

This tag requires that the tag GENERATE_HTML is set to YES.

HTML_STYLESHEET

The HTML_STYLESHEET tag can be used to specify a user-defined cascading style sheet that is used by each HTML page. It can be used to fine-tune the look of the HTML output. If left blank doxygen will generate a default style sheet.

See also section Doxygen usage for information on how to generate the style sheet that doxygen normally uses.

Note
It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as it is more robust and this tag (HTML_STYLESHEET) will in the future become obsolete.

This tag requires that the tag GENERATE_HTML is set to YES.

HTML_EXTRA_STYLESHEET
The HTML_EXTRA_STYLESHEET tag can be used to specify additional user-defined cascading style sheets that are included after the standard style sheets created by doxygen. Using this option one can overrule certain style aspects. This is preferred over using HTML_STYLESHEET since it does not replace the standard style sheet and is therefore more robust against future updates. Doxygen will copy the style sheet files to the output directory.
Note
The order of the extra style sheet files is of importance (e.g. the last style sheet in the list overrules the setting of the previous ones in the list). Here is an example style sheet that gives the contents area a fixed width:
body {
background-color: #CCC;
color: black;
margin: 0;
}

div.contents {
margin-bottom: 10px;
margin-left: auto;
margin-right: auto;
width: 960px;
background-color: white;
}

#titlearea {
background-color: white;
}

hr.footer {
display: none;
}

.footer {
background-color: #AAA;
}

This tag requires that the tag GENERATE_HTML is set to YES.
HTML_EXTRA_FILES

will be replaced with the project name.
$datetime will be replaced with current the date and time. $date
will be replaced with the current date.
$year will be replaces with the current year. $doxygenversion
will be replaced with the version of doxygen
$projectname will be replaced with the name of the project (see PROJECT_NAME) $projectnumber
will be replaced with the project number (see PROJECT_NUMBER)
$projectbrief will be replaced with the project brief description (see PROJECT_BRIEF) $projectlogo
will be replaced with the project logo (see PROJECT_LOGO)
$latexdocumentpre will be replaced by an output language dependent setting e.g. embed the entire document in a special environment (for Chinese, Japanese etc.) Commonly used together with $latexdocumentpost in the footer.
$latexdocumentpost will be replaced by an output language dependent setting e.g. embed the entire document in a special environment (for Chinese, Japanese etc.) Commonly used together with $latexdocumentpre in the header.
$generatedby will be replaced with the output language dependent version of the text "Generated by" or when the LATEX_TIMESTAMP is set by the output language dependent version of the text "Generated on $datetime for $projectname by". $latexcitereference
will be replaced by the output language dependent$version of the word "Bibliography". This setting is typically used in combination with the block name CITATIONS_PRESENT. $latexbibstyle
will be replaced with the latex bib style to be used as set by LATEX_BIB_STYLE, in case nothing is set the bib style plain is used. This setting is typically used in combination with the block name CITATIONS_PRESENT.
$latexbibfiles will be replaced by the comma separated list of bib. files as set by CITE_BIB_FILES (when necessary a missing .bib is automatically added). This setting is typically used in combination with the block name CITATIONS_PRESENT. $papertype
will be replaced by the paper type as set in PAPER_TYPE and the word "paper" is directly appended to it to have a correct paper type.
$languagesupport will be replaced by an output language dependent setting of packages required for translating terms of the specified language. $latexfontenc
will be replaced by an output language dependent setting of the fontencoding to be used. This setting is typically used in combination with the block name LATEX_FONTENC.
$latexfont will be replaced by an output language dependent setting of the fonts to be used. $latexemojidirectory
will be replaced by the directory as set in LATEX_EMOJI_DIRECTORY with the backslashes replaced by forward slashes (so usable by ). In case the LATEX_EMOJI_DIRECTORY is empty, the current directory will be used.
$makeindex will be replaced by the command as set in LATEX_MAKEINDEX_CMD. Then the command doesn't start with a backslash, a backslash is automatically prepended. In case the setting is empty the command \makeindex is used. $extralatexpackages
will be replaced by commands for using the packages set in EXTRA_PACKAGES.
$extralatexstylesheet will be replaced by commands for using the packages set in LATEX_EXTRA_STYLESHEET (when the extension is the default extension, .sty, this extension is stripped for the package name). $latexspecialformulachars
will be replaced by the code for some special unicode characters that are commonly used (i.e. superscript minus, superscript 2 and superscript 3)
$formulamacrofile will be replaced by the name of the file as set in FORMULA_MACROFILE. This setting is typically used in combination with the block name FORMULA_MACROFILE. To cope with differences in the layout of the header and footer that depend on configuration settings, the header and footer can also contain special blocks that will be copied to the output or skipped depending on the configuration. Such blocks have the following form:  %%BEGIN BLOCKNAME Some context copied when condition BLOCKNAME holds %%END BLOCKNAME %%BEGIN !BLOCKNAME Some context copied when condition BLOCKNAME does not hold %%END !BLOCKNAME  The following block names are set based on the used settings in the configuration file: COMPACT_LATEX Content within this block is copied to the output when the COMPACT_LATEX option is enabled. PDF_HYPERLINKS Content within this block is copied to the output when the PDF_HYPERLINKS option is enabled. USE_PDFLATEX Content within this block is copied to the output when the USE_PDFLATEX option is enabled. LATEX_BATCHMODE Content within this block is copied to the output when the LATEX_BATCHMODE option is enabled. LATEX_TIMESTAMP Content within this block is copied to the output when the LATEX_TIMESTAMP option is enabled. The following block names are set based on the fact whether or not the tag has a value in the used configuration file: LATEX_FONTENC Content within this block is copied to the output when the doxygen latex translator function returns a value for the font encoding to be used. It is to be used in combination with the above mentioned $latexfontenc.
FORMULA_MACROFILE
Content within this block is copied to the output when the FORMULA_MACROFILE option is not empty. It is to be used in combination with the above mentioned $formulamacrofile. The following block name is set based on whether or not a feature is used in the documentation: CITATIONS_PRESENT Content within this block is copied to the output when in the documentation citations are present and the relevant .. are present. It is to be used in combination with the above mentioned $latexcitereference, $latexbibstyle and $latexbibfiles.

This tag requires that the tag GENERATE_LATEX is set to YES.

LATEX_FOOTER

The LATEX_FOOTER tag can be used to specify a user-defined footer for the generated document. The footer should contain everything after the last chapter. If it is left blank doxygen will generate a standard footer.

See LATEX_HEADER for more information on how to generate a default footer and what special commands can be used inside the footer.

See also section Doxygen usage for information on how to generate the default footer that doxygen normally uses.

Note: Only use a user-defined footer if you know what you are doing!

This tag requires that the tag GENERATE_LATEX is set to YES.

LATEX_EXTRA_STYLESHEET
The LATEX_EXTRA_STYLESHEET tag can be used to specify additional user-defined style sheets that are included after the standard style sheets created by doxygen. Using this option one can overrule certain style aspects. Doxygen will copy the style sheet files to the output directory.
Note
The order of the extra style sheet files is of importance (e.g. the last style sheet in the list overrules the setting of the previous ones in the list).
This tag requires that the tag GENERATE_LATEX is set to YES.
LATEX_EXTRA_FILES

The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or other source files which should be copied to the LATEX_OUTPUT output directory. Note that the files will be copied as-is; there are no commands or markers available.

This tag requires that the tag GENERATE_LATEX is set to YES.

PDF_HYPERLINKS

If the PDF_HYPERLINKS tag is set to YES, the that is generated is prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will contain links (just like the HTML output) instead of page references. This makes the output suitable for online browsing using a PDF viewer.

The default value is: YES.

This tag requires that the tag GENERATE_LATEX is set to YES.

USE_PDFLATEX

If the USE_PDFLATEX tag is set to YES, doxygen will use the engine as specified with LATEX_CMD_NAME to generate the PDF file directly from the files. Set this option to YES, to get a higher quality PDF documentation.

The default value is: YES.

This tag requires that the tag GENERATE_LATEX is set to YES.

LATEX_BATCHMODE

If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode command to the generated files. This will instruct to keep running if errors occur, instead of asking the user for help.

The default value is: NO.

This tag requires that the tag GENERATE_LATEX is set to YES.

LATEX_HIDE_INDICES

If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the index chapters (such as File Index, Compound Index, etc.) in the output.

The default value is: NO.

This tag requires that the tag GENERATE_LATEX is set to YES.

LATEX_BIB_STYLE

The LATEX_BIB_STYLE tag can be used to specify the style to use for the bibliography, e.g. plainnat, or ieeetr. See https://en.wikipedia.org/wiki/BibTeX and \cite for more info.

The default value is: plain.

This tag requires that the tag GENERATE_LATEX is set to YES.

LATEX_TIMESTAMP

If the LATEX_TIMESTAMP tag is set to YES then the footer of each generated page will contain the date and time when the page was generated. Setting this to NO can help when comparing the output of multiple runs.

The default value is: NO.

This tag requires that the tag GENERATE_LATEX is set to YES.

LATEX_EMOJI_DIRECTORY

The LATEX_EMOJI_DIRECTORY tag is used to specify the (relative or absolute) path from which the emoji images will be read. If a relative path is entered, it will be relative to the LATEX_OUTPUT directory. If left blank the LATEX_OUTPUT directory will be used.

This tag requires that the tag GENERATE_LATEX is set to YES.

Configuration options related to the RTF output

GENERATE_RTF

If the GENERATE_RTF tag is set to YES, doxygen will generate RTF output. The RTF output is optimized for Word 97 and may not look too pretty with other RTF readers/editors.

The default value is: NO.

RTF_OUTPUT

The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a relative path is entered the value of OUTPUT_DIRECTORY will be put in front of it.

The default directory is: rtf.

This tag requires that the tag GENERATE_RTF is set to YES.

COMPACT_RTF

If the COMPACT_RTF tag is set to YES, doxygen generates more compact RTF documents. This may be useful for small projects and may help to save some trees in general.

The default value is: NO.

This tag requires that the tag GENERATE_RTF is set to YES.

RTF_HYPERLINKS

If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will contain hyperlink fields. The RTF file will contain links (just like the HTML output) instead of page references. This makes the output suitable for online browsing using Word or some other Word compatible readers that support those fields.

The default value is: NO.

This tag requires that the tag GENERATE_RTF is set to YES.

RTF_STYLESHEET_FILE

Load stylesheet definitions from file. Syntax is similar to doxygen's configuration file, i.e. a series of assignments. You only have to provide replacements, missing definitions are set to their default value.
See also section Doxygen usage for information on how to generate the default style sheet that doxygen normally uses.

This tag requires that the tag GENERATE_RTF is set to YES.

RTF_EXTENSIONS_FILE

Set optional variables used in the generation of an RTF document. Syntax is similar to doxygen's configuration file. A template extensions file can be generated using doxygen -e rtf extensionFile.

This tag requires that the tag GENERATE_RTF is set to YES.

Configuration options related to the man page output

GENERATE_MAN

If the GENERATE_MAN tag is set to YES, doxygen will generate man pages for classes and files.

The default value is: NO.

MAN_OUTPUT

The MAN_OUTPUT tag is used to specify where the man pages will be put. If a relative path is entered the value of OUTPUT_DIRECTORY will be put in front of it. A directory man3 will be created inside the directory specified by MAN_OUTPUT.

The default directory is: man.

This tag requires that the tag GENERATE_MAN is set to YES.

MAN_EXTENSION

The MAN_EXTENSION tag determines the extension that is added to the generated man pages. In case the manual section does not start with a number, the number 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is optional.

The default value is: .3.

This tag requires that the tag GENERATE_MAN is set to YES.

MAN_SUBDIR

The MAN_SUBDIR tag determines the name of the directory created within MAN_OUTPUT in which the man pages are placed. If defaults to man followed by MAN_EXTENSION with the initial . removed.

This tag requires that the tag GENERATE_MAN is set to YES.

MAN_LINKS

If the MAN_LINKS tag is set to YES and doxygen generates man output, then it will generate one additional man file for each entity documented in the real man page(s). These additional files only source the real man page, but without them the man command would be unable to find the correct page.

The default value is: NO.

This tag requires that the tag GENERATE_MAN is set to YES.

Configuration options related to the XML output

GENERATE_XML

If the GENERATE_XML tag is set to YES, doxygen will generate an XML file that captures the structure of the code including all documentation.

The default value is: NO.

XML_OUTPUT

The XML_OUTPUT tag is used to specify where the XML pages will be put. If a relative path is entered the value of OUTPUT_DIRECTORY will be put in front of it.

The default directory is: xml.

This tag requires that the tag GENERATE_XML is set to YES.

XML_PROGRAMLISTING

If the XML_PROGRAMLISTING tag is set to YES, doxygen will dump the program listings (including syntax highlighting and cross-referencing information) to the XML output. Note that enabling this will significantly increase the size of the XML output.

The default value is: YES.

This tag requires that the tag GENERATE_XML is set to YES.

XML_NS_MEMB_FILE_SCOPE

If the XML_NS_MEMB_FILE_SCOPE tag is set to YES, doxygen will include namespace members in file scope as well, matching the HTML output.

The default value is: NO.

This tag requires that the tag GENERATE_XML is set to YES.

Configuration options related to the DOCBOOK output

GENERATE_DOCBOOK

If the GENERATE_DOCBOOK tag is set to YES, doxygen will generate Docbook files that can be used to generate PDF.

The default value is: NO.

DOCBOOK_OUTPUT

The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put. If a relative path is entered the value of OUTPUT_DIRECTORY will be put in front of it.

The default directory is: docbook.

This tag requires that the tag GENERATE_DOCBOOK is set to YES.

Configuration options for the AutoGen Definitions output

GENERATE_AUTOGEN_DEF

If the GENERATE_AUTOGEN_DEF tag is set to YES, doxygen will generate an AutoGen Definitions (see http://autogen.sourceforge.net/) file that captures the structure of the code including all documentation. Note that this feature is still experimental and incomplete at the moment.

The default value is: NO.

Configuration options related to Sqlite3 output

GENERATE_SQLITE3

If the GENERATE_SQLITE3 tag is set to YES doxygen will generate a Sqlite3 database with symbols found by doxygen stored in tables.

Note
The availability of this option depends on whether or not doxygen was generated with the -Duse_sqlite3=ON option for CMake.

The default value is: NO.

SQLITE3_OUTPUT

The SQLITE3_OUTPUT tag is used to specify where the Sqlite3 database will be put. If a relative path is entered the value of OUTPUT_DIRECTORY will be put in front of it.

Note
The availability of this option depends on whether or not doxygen was generated with the -Duse_sqlite3=ON option for CMake.

The default directory is: sqlite3.

This tag requires that the tag GENERATE_SQLITE3 is set to YES.

SQLITE3_RECREATE_DB

The SQLITE3_OVERWRITE_DB tag is set to YES, the existing doxygen_sqlite3.db database file will be recreated with each doxygen run. If set to NO, doxygen will warn if an a database file is already found and not modify it.

Note
The availability of this option depends on whether or not doxygen was generated with the -Duse_sqlite3=ON option for CMake.

The default value is: YES.

This tag requires that the tag GENERATE_SQLITE3 is set to YES.

Configuration options related to the Perl module output

GENERATE_PERLMOD

If the GENERATE_PERLMOD tag is set to YES, doxygen will generate a Perl module file that captures the structure of the code including all documentation.
Note that this feature is still experimental and incomplete at the moment.

The default value is: NO.

PERLMOD_LATEX

If the PERLMOD_LATEX tag is set to YES, doxygen will generate the necessary Makefile rules, Perl scripts and code to be able to generate PDF and DVI output from the Perl module output.

The default value is: NO.

This tag requires that the tag GENERATE_PERLMOD is set to YES.

PERLMOD_PRETTY

If the PERLMOD_PRETTY tag is set to YES, the Perl module output will be nicely formatted so it can be parsed by a human reader. This is useful if you want to understand what is going on. On the other hand, if this tag is set to NO, the size of the Perl module output will be much smaller and Perl will parse it just the same.

The default value is: YES.

This tag requires that the tag GENERATE_PERLMOD is set to YES.

PERLMOD_MAKEVAR_PREFIX

The names of the make variables in the generated doxyrules.make file are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful so different doxyrules.make files included by the same Makefile don't overwrite each other's variables.

This tag requires that the tag GENERATE_PERLMOD is set to YES.

Configuration options related to the preprocessor

ENABLE_PREPROCESSING

If the ENABLE_PREPROCESSING tag is set to YES, doxygen will evaluate all C-preprocessor directives found in the sources and include files.

The default value is: YES.

MACRO_EXPANSION

If the MACRO_EXPANSION tag is set to YES, doxygen will expand all macro names in the source code. If set to NO, only conditional compilation will be performed. Macro expansion can be done in a controlled way by setting EXPAND_ONLY_PREDEF to YES.

The default value is: NO.

This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

EXPAND_ONLY_PREDEF

If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then the macro expansion is limited to the macros specified with the PREDEFINED and EXPAND_AS_DEFINED tags.

The default value is: NO.

This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

SEARCH_INCLUDES

If the SEARCH_INCLUDES tag is set to YES, the include files in the INCLUDE_PATH will be searched if a #include is found.

The default value is: YES.

This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

INCLUDE_PATH

The INCLUDE_PATH tag can be used to specify one or more directories that contain include files that are not input files but should be processed by the preprocessor.

Note that the INCLUDE_PATH is not recursive, so the setting of RECURSIVE has no effect here.

This tag requires that the tag SEARCH_INCLUDES is set to YES.

INCLUDE_FILE_PATTERNS

You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard patterns (like *.h and *.hpp) to filter out the header-files in the directories. If left blank, the patterns specified with FILE_PATTERNS will be used.

This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

PREDEFINED

The PREDEFINED tag can be used to specify one or more macro names that are defined before the preprocessor is started (similar to the -D option of e.g. gcc). The argument of the tag is a list of macros of the form: name or name=definition (no spaces). If the definition and the "=" are omitted, "=1" is assumed. To prevent a macro definition from being undefined via #undef or recursively expanded use the := operator instead of the = operator.

This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

EXPAND_AS_DEFINED

If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this tag can be used to specify a list of macro names that should be expanded. The macro definition that is found in the sources will be used. Use the PREDEFINED tag if you want to use a different macro definition that overrules the definition found in the source code.

This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

SKIP_FUNCTION_MACROS

If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will remove all references to function-like macros that are alone on a line, have an all uppercase name, and do not end with a semicolon. Such function macros are typically used for boiler-plate code, and will confuse the parser if not removed.

The default value is: YES.

This tag requires that the tag ENABLE_PREPROCESSING is set to YES.

Configuration options related to external references

TAGFILES

The TAGFILES tag can be used to specify one or more tag files.

For each tag file the location of the external documentation should be added. The format of a tag file without this location is as follows:

  TAGFILES = file1 file2 ...


Adding location for the tag files is done as follows:

  TAGFILES = file1=loc1 "file2 = loc2" ...


where loc1 and loc2 can be relative or absolute paths or URLs. See the section Linking to external documentation for more information about the use of tag files.

Note
Each tag file must have a unique name (where the name does NOT include the path). If a tag file is not located in the directory in which doxygen is run, you must also specify the path to the tagfile here.

GENERATE_TAGFILE

When a file name is specified after GENERATE_TAGFILE, doxygen will create a tag file that is based on the input files it reads. See section Linking to external documentation for more information about the usage of tag files.

ALLEXTERNALS

If the ALLEXTERNALS tag is set to YES, all external class will be listed in the class index. If set to NO, only the inherited external classes will be listed.

The default value is: NO.

EXTERNAL_GROUPS

If the EXTERNAL_GROUPS tag is set to YES, all external groups will be listed in the modules index. If set to NO, only the current project's groups will be listed.

The default value is: YES.

EXTERNAL_PAGES

If the EXTERNAL_PAGES tag is set to YES, all external pages will be listed in the related pages index. If set to NO, only the current project's pages will be listed.

The default value is: YES.

Configuration options related to the dot tool

DIA_PATH

You can include diagrams made with dia in doxygen documentation. Doxygen will then run dia to produce the diagram and insert it in the documentation. The DIA_PATH tag allows you to specify the directory where the dia binary resides. If left empty dia is assumed to be found in the default search path.

HIDE_UNDOC_RELATIONS

If set to YES the inheritance and collaboration graphs will hide inheritance and usage relations if the target is undocumented or is not a class.

The default value is: YES.

HAVE_DOT

If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is available from the path. This tool is part of Graphviz, a graph visualization toolkit from AT&T and Lucent Bell Labs. The other options in this section have no effect if this option is set to NO

The default value is: NO.

DOT_NUM_THREADS

The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed to run in parallel. When set to 0 doxygen will base this on the number of processors available in the system. You can set it explicitly to a value larger than 0 to get control over the balance between CPU load and processing speed.

Minimum value: 0, maximum value: 32, default value: 0.

This tag requires that the tag HAVE_DOT is set to YES.

DOT_FONTNAME

When you want a differently looking font in the dot files that doxygen generates you can specify the font name using DOT_FONTNAME. You need to make sure dot is able to find the font, which can be done by putting it in a standard location or by setting the DOTFONTPATH environment variable or by setting DOT_FONTPATH to the directory containing the font.

The default value is: Helvetica.

This tag requires that the tag HAVE_DOT is set to YES.

DOT_FONTSIZE

The DOT_FONTSIZE tag can be used to set the size (in points) of the font of dot graphs.

Minimum value: 4, maximum value: 24, default value: 10.

This tag requires that the tag HAVE_DOT is set to YES.

DOT_FONTPATH

By default doxygen will tell dot to use the default font as specified with DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set the path where dot can find it using this tag.

This tag requires that the tag HAVE_DOT is set to YES.

CLASS_GRAPH

If the CLASS_GRAPH tag is set to YES (or GRAPH) then doxygen will generate a graph for each documented class showing the direct and indirect inheritance relations. In case HAVE_DOT is set as well dot will be used to draw the graph, otherwise the built-in generator will be used. If the CLASS_GRAPH tag is set to TEXT the direct and indirect inheritance relations will be shown as texts / links.

Possible values are: NO, YES, TEXT and GRAPH.

The default value is: YES.

COLLABORATION_GRAPH

If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a graph for each documented class showing the direct and indirect implementation dependencies (inheritance, containment, and class references variables) of the class with other documented classes.

The default value is: YES.

This tag requires that the tag HAVE_DOT is set to YES.

GROUP_GRAPHS

If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for groups, showing the direct groups dependencies.

The default value is: YES.

This tag requires that the tag HAVE_DOT is set to YES.

UML_LOOK

If the UML_LOOK tag is set to YES, doxygen will generate inheritance and collaboration diagrams in a style similar to the OMG's Unified Modeling Language.

The default value is: NO.

This tag requires that the tag HAVE_DOT is set to YES.

UML_LIMIT_NUM_FIELDS

If the UML_LOOK tag is enabled, the fields and methods are shown inside the class node. If there are many fields or methods and many nodes the graph may become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the number of items for each type to make the size more manageable. Set this to 0 for no limit. Note that the threshold may be exceeded by 50% before the limit is enforced. So when you set the threshold to 10, up to 15 fields may appear, but if the number exceeds 15, the total amount of fields shown is limited to 10.

Minimum value: 0, maximum value: 100, default value: 10.

This tag requires that the tag UML_LOOK is set to YES.

DOT_UML_DETAILS

If the DOT_UML_DETAILS tag is set to NO, doxygen will show attributes and methods without types and arguments in the UML graphs. If the DOT_UML_DETAILS tag is set to YES, doxygen will add type and arguments for attributes and methods in the UML graphs. If the DOT_UML_DETAILS tag is set to NONE, doxygen will not generate fields with class member information in the UML graphs. The class diagrams will look similar to the default class diagrams but using UML notation for the relationships.

Possible values are: NO, YES and NONE.

The default value is: NO.

This tag requires that the tag UML_LOOK is set to YES.

DOT_WRAP_THRESHOLD

The DOT_WRAP_THRESHOLD tag can be used to set the maximum number of characters to display on a single line. If the actual line length exceeds this threshold significantly it will wrapped across multiple lines. Some heuristics are apply to avoid ugly line breaks.

Minimum value: 0, maximum value: 1000, default value: 17.

This tag requires that the tag HAVE_DOT is set to YES.

TEMPLATE_RELATIONS

If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and collaboration graphs will show the relations between templates and their instances.

The default value is: NO.

This tag requires that the tag HAVE_DOT is set to YES.

INCLUDE_GRAPH

If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to YES then doxygen will generate a graph for each documented file showing the direct and indirect include dependencies of the file with other documented files.

The default value is: YES.

This tag requires that the tag HAVE_DOT is set to YES.

INCLUDED_BY_GRAPH

If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to YES then doxygen will generate a graph for each documented file showing the direct and indirect include dependencies of the file with other documented files.

The default value is: YES.

This tag requires that the tag HAVE_DOT is set to YES.

CALL_GRAPH

If the CALL_GRAPH tag is set to YES then doxygen will generate a call dependency graph for every global function or class method.
Note that enabling this option will significantly increase the time of a run. So in most cases it will be better to enable call graphs for selected functions only using the \callgraph command. Disabling a call graph can be accomplished by means of the command \hidecallgraph.

The default value is: NO.

This tag requires that the tag HAVE_DOT is set to YES.

CALLER_GRAPH

If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller dependency graph for every global function or class method.
Note that enabling this option will significantly increase the time of a run. So in most cases it will be better to enable caller graphs for selected functions only using the \callergraph command. Disabling a caller graph can be accomplished by means of the command \hidecallergraph.

The default value is: NO.

This tag requires that the tag HAVE_DOT is set to YES.

GRAPHICAL_HIERARCHY

If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical hierarchy of all classes instead of a textual one.

The default value is: YES.

This tag requires that the tag HAVE_DOT is set to YES.

DIRECTORY_GRAPH

If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the dependencies a directory has on other directories in a graphical way. The dependency relations are determined by the #include relations between the files in the directories.

The default value is: YES.

This tag requires that the tag HAVE_DOT is set to YES.

DIR_GRAPH_MAX_DEPTH

The DIR_GRAPH_MAX_DEPTH tag can be used to limit the maximum number of levels of child directories generated in directory dependency graphs by dot.

Minimum value: 1, maximum value: 25, default value: 1.

This tag requires that the tag DIRECTORY_GRAPH is set to YES.

DOT_IMAGE_FORMAT

The DOT_IMAGE_FORMAT tag can be used to set the image format of the images generated by dot. For an explanation of the image formats see the section output formats in the documentation of the dot tool (Graphviz).

Note
If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order to make the SVG files visible in IE 9+ (other browsers do not have this requirement).

Possible values are: png, jpg, gif, svg, png:gd, png:gd:gd, png:cairo, png:cairo:gd, png:cairo:cairo, png:cairo:gdiplus, png:gdiplus and png:gdiplus:gdiplus.

The default value is: png.

This tag requires that the tag HAVE_DOT is set to YES.

INTERACTIVE_SVG

If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to enable generation of interactive SVG images that allow zooming and panning.
Note that this requires a modern browser other than Internet Explorer. Tested and working are Firefox, Chrome, Safari, and Opera.

Note
For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make the SVG files visible. Older versions of IE do not have SVG support.

The default value is: NO.

This tag requires that the tag HAVE_DOT is set to YES.

DOT_PATH

The DOT_PATH tag can be used to specify the path where the dot tool can be found. If left blank, it is assumed the dot tool can be found in the path.

This tag requires that the tag HAVE_DOT is set to YES.

DOTFILE_DIRS

The DOTFILE_DIRS tag can be used to specify one or more directories that contain dot files that are included in the documentation (see the \dotfile command).

This tag requires that the tag HAVE_DOT is set to YES.

MSCFILE_DIRS

The MSCFILE_DIRS tag can be used to specify one or more directories that contain msc files that are included in the documentation (see the \mscfile command).

DIAFILE_DIRS

The DIAFILE_DIRS tag can be used to specify one or more directories that contain dia files that are included in the documentation (see the \diafile command).

PLANTUML_JAR_PATH

When using plantuml, the PLANTUML_JAR_PATH tag should be used to specify the path where java can find the plantuml.jar file or to the filename of jar file to be used. If left blank, it is assumed PlantUML is not used or called during a preprocessing step. Doxygen will generate a warning when it encounters a \startuml command in this case and will not generate output for the diagram.

PLANTUML_CFG_FILE

When using plantuml, the PLANTUML_CFG_FILE tag can be used to specify a configuration file for plantuml.

PLANTUML_INCLUDE_PATH

When using plantuml, the specified paths are searched for files specified by the !include statement in a plantuml block.

DOT_GRAPH_MAX_NODES

The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes that will be shown in the graph. If the number of nodes in a graph becomes larger than this value, doxygen will truncate the graph, which is visualized by representing a node as a red box. Note that doxygen if the number of direct children of the root node in a graph is already larger than DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.

Minimum value: 0, maximum value: 10000, default value: 50.

This tag requires that the tag HAVE_DOT is set to YES.

MAX_DOT_GRAPH_DEPTH

The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs generated by dot. A depth value of 3 means that only nodes reachable from the root by following a path via at most 3 edges will be shown. Nodes that lay further from the root node will be omitted. Note that setting this option to 1 or 2 may greatly reduce the computation time needed for large code bases. Also note that the size of a graph can be further restricted by DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.

Minimum value: 0, maximum value: 1000, default value: 0.

This tag requires that the tag HAVE_DOT is set to YES.

DOT_TRANSPARENT

Set the DOT_TRANSPARENT tag to YES to generate images with a transparent background. This is disabled by default, because dot on Windows does not seem to support this out of the box.
Warning: Depending on the platform used, enabling this option may lead to badly anti-aliased labels on the edges of a graph (i.e. they become hard to read).

The default value is: NO.

This tag requires that the tag HAVE_DOT is set to YES.

DOT_MULTI_TARGETS

Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate multiple output files in one run (i.e. multiple -o and -T options on the command line). This makes dot run faster, but since only newer versions of dot (>1.8.10) support this, this feature is disabled by default.

The default value is: NO.

This tag requires that the tag HAVE_DOT is set to YES.

GENERATE_LEGEND

If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page explaining the meaning of the various boxes and arrows in the dot generated graphs.

Note
This tag requires that UML_LOOK isn't set, i.e. the doxygen internal graphical representation for inheritance and collaboration diagrams is used.

The default value is: YES.

This tag requires that the tag HAVE_DOT is set to YES.

DOT_CLEANUP

If the DOT_CLEANUP tag is set to YES, doxygen will remove the intermediate files that are used to generate the various graphs.
Note: This setting is not only used for dot files but also for msc temporary files.

The default value is: YES.

Examples

Suppose you have a simple project consisting of two files: a source file example.cc and a header file example.h. Then a minimal configuration file is as simple as:

INPUT            = example.cc example.h


Assuming the example makes use of Qt classes and perl is located in /usr/bin, a more realistic configuration file would be:

PROJECT_NAME     = Example
INPUT            = example.cc example.h
WARNINGS         = YES
TAGFILES         = qt.tag
SEARCHENGINE     = NO


To generate the documentation for the QdbtTabular package I have used the following configuration file:

PROJECT_NAME     = QdbtTabular
OUTPUT_DIRECTORY = html
WARNINGS         = YES
INPUT            = examples/examples.doc src
FILE_PATTERNS    = *.cc *.h
INCLUDE_PATH     = examples
TAGFILES         = qt.tag
SEARCHENGINE     = YES


To regenerate the Qt-1.44 documentation from the sources, you could use the following configuration file:

PROJECT_NAME         = Qt
OUTPUT_DIRECTORY     = qt_docs
HIDE_UNDOC_MEMBERS   = YES
HIDE_UNDOC_CLASSES   = YES
ENABLE_PREPROCESSING = YES
MACRO_EXPANSION      = YES
EXPAND_ONLY_PREDEF   = YES
SEARCH_INCLUDES      = YES
FULL_PATH_NAMES      = YES
STRIP_FROM_PATH      = $(QTDIR)/ PREDEFINED = USE_TEMPLATECLASS Q_EXPORT= \ QArrayT:=QArray \ QListT:=QList \ QDictT:=QDict \ QQueueT:=QQueue \ QVectorT:=QVector \ QPtrDictT:=QPtrDict \ QIntDictT:=QIntDict \ QStackT:=QStack \ QDictIteratorT:=QDictIterator \ QListIteratorT:=QListIterator \ QCacheT:=QCache \ QCacheIteratorT:=QCacheIterator \ QIntCacheT:=QIntCache \ QIntCacheIteratorT:=QIntCacheIterator \ QIntDictIteratorT:=QIntDictIterator \ QPtrDictIteratorT:=QPtrDictIterator INPUT =$(QTDIR)/doc \
$(QTDIR)/src/widgets \$(QTDIR)/src/kernel \
$(QTDIR)/src/dialogs \$(QTDIR)/src/tools
FILE_PATTERNS        = *.cpp *.h q*.doc
INCLUDE_PATH         = $(QTDIR)/include RECURSIVE = YES  For the Qt-2.1 sources I recommend to use the following settings: PROJECT_NAME = Qt PROJECT_NUMBER = 2.1 HIDE_UNDOC_MEMBERS = YES HIDE_UNDOC_CLASSES = YES SOURCE_BROWSER = YES INPUT =$(QTDIR)/src
FILE_PATTERNS         = *.cpp *.h q*.doc
RECURSIVE             = YES
EXCLUDE_PATTERNS      = *codec.cpp moc_* */compat/* */3rdparty/*
ALPHABETICAL_INDEX    = YES
IGNORE_PREFIX         = Q
ENABLE_PREPROCESSING  = YES
MACRO_EXPANSION       = YES
INCLUDE_PATH          = \$(QTDIR)/include
PREDEFINED            = Q_PROPERTY(x)= \
Q_OVERRIDE(x)= \
Q_EXPORT= \
Q_ENUMS(x)= \
"QT_STATIC_CONST=static const " \
_WS_X11_ \