diff --git a/application/argumentparser.cpp b/application/argumentparser.cpp
index 8a16632..2e4e17e 100644
--- a/application/argumentparser.cpp
+++ b/application/argumentparser.cpp
@@ -24,13 +24,17 @@ using namespace IoUtilities;
  */
 namespace ApplicationUtilities {
 
-/// \cond
-
+/// \brief Specifies the name of the application (used by ArgumentParser::printHelp()).
 const char *applicationName = nullptr;
+/// \brief Specifies the author of the application (used by ArgumentParser::printHelp()).
 const char *applicationAuthor = nullptr;
+/// \brief Specifies the version of the application (used by ArgumentParser::printHelp()).
 const char *applicationVersion = nullptr;
+/// \brief Specifies the URL to the application website (used by ArgumentParser::printHelp()).
 const char *applicationUrl = nullptr;
 
+/// \cond
+
 inline bool notEmpty(const char *str)
 {
     return str && *str;
@@ -1099,4 +1103,15 @@ HelpArgument::HelpArgument(ArgumentParser &parser) :
     });
 }
 
+/*!
+ * \class OperationArgument
+ * \brief The OperationArgument class is an Argument where denotesOperation() is true by default.
+ */
+
+/*!
+ * \class ConfigValueArgument
+ * \brief The ConfigValueArgument class is an Argument where setCombinable() is true by default.
+ * \sa ConfigValueArgument::ConfigValueArgument()
+ */
+
 }
diff --git a/application/argumentparser.h b/application/argumentparser.h
index beacb75..3285abf 100644
--- a/application/argumentparser.h
+++ b/application/argumentparser.h
@@ -19,6 +19,11 @@ CPP_UTILITIES_EXPORT extern const char *applicationAuthor;
 CPP_UTILITIES_EXPORT extern const char *applicationVersion;
 CPP_UTILITIES_EXPORT extern const char *applicationUrl;
 
+/*!
+ * \macro SET_APPLICATION_INFO
+ * \brief Sets application meta data used by ArgumentParser::printHelp().
+ * \remarks Reads those data from the config header so "config.h" must be included.
+ */
 #define SET_APPLICATION_INFO \
     ::ApplicationUtilities::applicationName = APP_NAME; \
     ::ApplicationUtilities::applicationAuthor = APP_AUTHOR; \
@@ -365,7 +370,7 @@ inline const std::vector<const char *> &Argument::values(std::size_t occurrence)
  * The parser will expect that many values when parsing command line arguments.
  * A negative value indicates a variable number of arguments to be expected.
  *
- * The default value is 0.
+ * The default value is 0, except for ConfigValueArgument instances.
  *
  * \sa setRequiredValueCount()
  * \sa valueNames()
@@ -570,7 +575,7 @@ inline bool Argument::isCombinable() const
 }
 
 /*!
- * \brief Sets if this argument can be combined.
+ * \brief Sets whether this argument can be combined.
  *
  * The parser will complain if two arguments labeled as uncombinable are
  * present at the same time.
@@ -588,7 +593,7 @@ inline void Argument::setCombinable(bool value)
  * An argument which denotes the operation might be specified
  * withouth "--" or "-" prefix as first main argument.
  *
- * The default value is false.
+ * The default value is false, except for OperationArgument instances.
  *
  * \sa setDenotesOperation()
  */
@@ -810,6 +815,9 @@ public:
     ConfigValueArgument(const char *name, char abbreviation = '\0', const char *description = nullptr, std::initializer_list<const char *> valueNames = std::initializer_list<const char *>());
 };
 
+/*!
+ * \brief Constructs a new ConfigValueArgument with the specified parameter. The initial value of requiredValueCount() is set to size of specified \a valueNames.
+ */
 inline ConfigValueArgument::ConfigValueArgument(const char *name, char abbreviation, const char *description, std::initializer_list<const char *> valueNames) :
     Argument(name, abbreviation, description)
 {
diff --git a/cmake/templates/global.h.in b/cmake/templates/global.h.in
index 1f4bafc..7bfc67c 100644
--- a/cmake/templates/global.h.in
+++ b/cmake/templates/global.h.in
@@ -14,4 +14,14 @@
 # define @META_PROJECT_VARNAME_UPPER@_IMPORT LIB_IMPORT
 #endif
 
+/*!
+ * \def @META_PROJECT_VARNAME_UPPER@_EXPORT
+ * \brief Marks the symbol to be exported by the @META_PROJECT_NAME@ library.
+ */
+
+/*!
+ * \def @META_PROJECT_VARNAME_UPPER@_IMPORT
+ * \brief Marks the symbol to be imported from the @META_PROJECT_NAME@ library.
+ */
+
 #endif // @META_PROJECT_VARNAME_UPPER@_GLOBAL
diff --git a/global.h b/global.h
index fb8e5fa..6549ab9 100644
--- a/global.h
+++ b/global.h
@@ -14,4 +14,14 @@
 # define CPP_UTILITIES_IMPORT LIB_IMPORT
 #endif
 
+/*!
+ * \def CPP_UTILITIES_EXPORT
+ * \brief Marks the symbol to be exported by the c++utilities library.
+ */
+
+/*!
+ * \def CPP_UTILITIES_IMPORT
+ * \brief Marks the symbol to be imported from the c++utilities library.
+ */
+
 #endif // CPP_UTILITIES_GLOBAL