- Qt 6.8
- QDoc Manual
- Special Content
- Qt 6.8.3 Reference Documentation

Tables and Lists ◦ Miscellaneous

# Special Content

The document contents commands identify parts of the documentation, parts with a special rendering, conceptual meaning or function.

## \quotation

The \quotation and \endquotation commands delimit a long quotation.

The text in the delimited block is surrounded by <blockquote> and </blockquote> in the html output, e.g.:

     /*!
       Although the prospect of a significantly broader market is
       good news for Firstlogic, the notion also posed some
       challenges. Dave Dobson, director of technology for the La
       Crosse, Wisconsin-based company, said:

       \quotation
          As our solutions were being adopted into new
          environments, we saw an escalating need for easier
          integration with a wider range of enterprise
          applications.
       \endquotation
     */

The text in the \quotation block will appear in the generated HTML as:

     <blockquote>
       <p>As our solutions were being adopted into new environments,
       we saw an escalating need for easier integration with a wider
       range of enterprise applications.</p>
     </blockquote>

The built-in style sheet for most browsers will render the contents of the <blockquote> tag with left and right indentations. The example above would be rendered as:

> As our solutions were being adopted into new environments, we saw an escalating need for easier integration with a wider range of enterprise applications.

But you can redefine the <blockquote> tag in your style.css file.

## \note

The \note command defines a new paragraph preceded by "Note:" in bold. The command takes a continuous paragraph as the argument, terminating after the end of the paragraph. The note command is only for shorter statements and not for longer multiline paragraphs.

Similar to the \warning command, the note is for short and important statements. See Qt Writing Guidelines for usage information.

## \tableofcontents

The \tableofcontents command has been disabled because QDoc now generates a table of contents automatically.

The automatically generated table of contents appears in the upper righthand corner of the page.

## \brief

The \brief command introduces a one-sentence description of any of the Topic Commands.

The brief text is used to introduce the documentation of the associated object, and in lists generated using the \generatelist command and the \annotatedlist command.

The brief text will be displayed in the documentation for that particular topic.

For example the boolean QWidget::isWindow property:

     /*!
        \property QWidget::isActiveWindow
        \brief Whether this widget's window is the active window.

        The active window is the window that contains the widget that
        has keyboard focus.

        When popup windows are visible, this property is \c true
        for both the active window \e and the popup.

        \sa activateWindow(), QApplication::activeWindow()
     */

and the QWidget::geometry property

     /*!
        \property QWidget::geometry
        \brief The geometry of the widget relative to its parent and
        excluding the window frame.

        When changing the geometry, the widget, if visible,
        receives a move event (moveEvent()) and/or a resize
        event (resizeEvent()) immediately.

        ...

       \sa frameGeometry(), rect(), ...
     */

When the \brief command is used to describe a class, we recommend using a complete sentence like this:

     The <classname> class is|provides|contains|specifies...

Warning: Do not repeat your detailed description with the same sentence as the brief statement will be the first paragraph of the detailed description.

     /*!
        \class PreviewWindow
        \brief The PreviewWindow class is a custom widget
               displaying the names of its currently set
               window flags in a read-only text editor.

        The PreviewWindow class inherits QWidget. The widget
        displays the names of its window flags set with the
        setWindowFlags() function. It is also provided with a
        QPushButton that closes the window.

        ...

        \sa QWidget
     */

Using \brief in a \namespace:

     /*!
        \namespace Qt

        \brief The Qt namespace contains miscellaneous identifiers
        used throughout the Qt library.
     */

Using \brief in a \headerfile:

     /*!
        \headerfile <QtGlobal>
        \title Global Qt Declarations

        \brief The <QtGlobal> header file provides basic
        declarations and is included by all other Qt headers.

        \sa <QtAlgorithms>
     */

See also \property, \class, \namespace and \headerfile.

## \legalese

The \legalese and \endlegalese commands delimit a license agreement.

In the generated HTML, the delimited text is surrounded by a <div class="LegaleseLeft"> and </div> tags.

An example of a license agreement enclosed in \legalese and \endlegalese:

     /*!
         \legalese
             Copyright 1996 Daniel Dardailler.

             Permission to use, copy, modify, distribute, and sell this
             software for any purpose is hereby granted without fee,
             provided that the above copyright notice appear in all
             copies and that both that copyright notice and this
             permission notice appear in supporting documentation, and
             that the name of Daniel Dardailler not be used in
             advertising or publicity pertaining to distribution of the
             software without specific, written prior permission. Daniel
             Dardailler makes no representations about the suitability of
             this software for any purpose. It is provided "as is"
             without express or implied warranty.

             Modifications Copyright 1999 Matt Koss, under the same
             license as above.
         \endlegalese
     */

It will appear in the generated HTML as:

     <div class="LegaleseLeft">
        <p>Copyright 1996 Daniel Dardailler.</p>
        <p>Permission to use, copy, modify, distribute, and sell
        this software for any purpose is hereby granted without fee,
        provided that the above copyright notice appear in all
        copies and that both that copyright notice and this
        permission notice appear in supporting documentation, and
        that the name of Daniel Dardailler not be used in
        advertising or publicity pertaining to distribution of the
        software without specific, written prior permission. Daniel
        Dardailler makes no representations about the suitability of
        this software for any purpose. It is provided "as is"
        without express or implied warranty.</p>

        <p>Modifications Copyright 1999 Matt Koss, under the same
        license as above.</p>
     </div>

If the \endlegalese command is omitted, QDoc will process the \legalese command but considers the rest of the documentation page as the license agreement.

Ideally, the license text is located with the licensed code.

Elsewhere, the documentation identified as \legalese command can be accumulated using \generatelist with `legalese` as the argument. This is useful for generating an overview of the license agreements associated with the source code.

Note: The output of the `\generatelist legalese` command includes the \legalese texts in the current documentation project only. If the current documentation project depends on other modules, their license texts will not be listed.

## \warning

The \warning command prepends "Warning:" to the command's argument, in bold font.

     /*!
        Qt::HANDLE is a platform-specific handle type
        for system objects. This is  equivalent to
        \c{void *} on Windows and macOS, and to
        \c{unsigned long} on X11.

        \warning Using this type is not portable.
     */