### Class

# Adw AboutDialog

since: 1.5

#### Description [src]

    final class Adw.AboutDialog : Adw.Dialog
      implements Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget, Gtk.ShortcutManager {
      /* No available fields */
    }

A dialog showing information about the application.

an about dialog is typically opened when the user activates the `About …` item in the application’s primary menu. All parts of the dialog are optional.

## Main page

`AdwAboutDialog` prominently displays the application’s icon, name, developer name and version. They can be set with the `AdwAboutDialog:application-icon`, `AdwAboutDialog:application-name`, `AdwAboutDialog:developer-name` and `AdwAboutDialog:version` respectively.

## What's New

`AdwAboutDialog` provides a way for applications to display their release notes, set with the `AdwAboutDialog:release-notes` property.

Release notes are formatted the same way as AppStream descriptions.

The supported formatting options are:

- Paragraph (`<p>`)
- Ordered list (`<ol>`), with list items (`<li>`)
- Unordered list (`<ul>`), with list items (`<li>`)

Within paragraphs and list items, emphasis (`<em>`) and inline code (`<code>`) text styles are supported. The emphasis is rendered in italic, while inline code is shown in a monospaced font.

Any text outside paragraphs or list items is ignored.

Nested lists are not supported.

Only one version can be shown at a time. By default, the displayed version number matches `AdwAboutDialog:version`. Use `AdwAboutDialog:release-notes-version` to override it.

## Details

The Details page displays the application comments and links.

The comments can be set with the `AdwAboutDialog:comments` property. Unlike `GtkAboutDialog:comments`, this string can be long and detailed. It can also contain links and Pango markup.

To set the application website, use `AdwAboutDialog:website`. To add extra links below the website, use `adw_about_dialog_add_link()`.

If the Details page doesn’t have any other content besides website, the website will be displayed on the main page instead.

## Troubleshooting

`AdwAboutDialog` displays the following two links on the main page:

- Support Questions, set with the `AdwAboutDialog:support-url` property,
- Report an Issue, set with the `AdwAboutDialog:issue-url` property.

Additionally, applications can provide debugging information. It will be shown separately on the Troubleshooting page. Use the `AdwAboutDialog:debug-info` property to specify it.

It’s intended to be attached to issue reports when reporting issues against the application. As such, it cannot contain markup or links.

`AdwAboutDialog` provides a quick way to save debug information to a file. When saving, `AdwAboutDialog:debug-info-filename` would be used as the suggested filename.

## Credits and Acknowledgements

The Credits page has the following default sections:

- Developers, set with the `AdwAboutDialog:developers` property,
- Designers, set with the `AdwAboutDialog:designers` property,
- Artists, set with the `AdwAboutDialog:artists` property,
- Documenters, set with the `AdwAboutDialog:documenters` property,
- Translators, set with the `AdwAboutDialog:translator-credits` property.

When setting translator credits, use the strings `"translator-credits"` or `"translator_credits"` and mark them as translatable.

The default sections that don’t contain any names won’t be displayed.

The Credits page can also contain an arbitrary number of extra sections below the default ones. Use `adw_about_dialog_add_credit_section()` to add them.

The Acknowledgements page can be used to acknowledge additional people and organizations for their non-development contributions. Use `adw_about_dialog_add_acknowledgement_section()` to add sections to it. For example, it can be used to list backers in a crowdfunded project or to give special thanks.

Each of the people or organizations can have an email address or a website specified. To add a email address, use a string like `Edgar Allan Poe <edgar@poe.com>`. To specify a website with a title, use a string like `The GNOME Project https://www.gnome.org`:

## Legal

The Legal page displays the copyright and licensing information for the application and other modules.

The copyright string is set with the `AdwAboutDialog:copyright` property and should be a short string of one or two lines, for example: `© 2022 Example`.

Licensing information can be quickly set from a list of known licenses with the `AdwAboutDialog:license-type` property. If the application’s license is not in the list, `AdwAboutDialog:license` can be used instead.

To add information about other modules, such as application dependencies or data, use `adw_about_dialog_add_legal_section()`.

## Other applications

`AdwAboutDialog` can show links to your other apps at the end of the main page. To add them, use `adw_about_dialog_add_other_app()`.

By default the other apps section will have “Other Apps by `AdwAboutDialog:developer-name`” as its title. Use `AdwAboutDialog:other-apps-title` to override it.

## Constructing

To make constructing an `AdwAboutDialog` as convenient as possible, you can use the function `adw_show_about_dialog()` which constructs and shows a dialog.

    static void
    show_about (GtkApplication *app)
    {
      const char *developers[] = {
        "Angela Avery",
        NULL
      };

      const char *designers[] = {
        "GNOME Design Team",
        NULL
      };

      adw_show_about_dialog (GTK_WIDGET (gtk_application_get_active_window (app)),
                             "application-name", _("Example"),
                             "application-icon", "org.example.App",
                             "version", "1.2.3",
                             "copyright", "© 2022 Angela Avery",
                             "issue-url", "https://gitlab.gnome.org/example/example/-/issues/",
                             "license-type", GTK_LICENSE_GPL_3_0,
                             "developers", developers,
                             "designers", designers,
                             "translator-credits", _("translator-credits"),
                             NULL);
    }

## CSS nodes

`AdwAboutDialog` has a main CSS node with the name `dialog` and the style class `.about`.

Available since: 1.5

#### Ancestors

- AdwDialog
- GtkWidget
- GInitiallyUnowned
- GObject

#### Implements

- GtkAccessible
- GtkBuildable
- GtkConstraintTarget
- GtkShortcutManager

#### Constructors

###### adw_about_dialog_new

Creates a new `AdwAboutDialog`.

since: 1.5

###### adw_about_dialog_new_from_appdata

Creates a new `AdwAboutDialog` using AppStream metadata.

since: 1.5

#### Instance methods

###### adw_about_dialog_add_acknowledgement_section

Adds a section to the Acknowledgements page.

since: 1.5

###### adw_about_dialog_add_credit_section

Adds an extra section to the Credits page.

since: 1.5

###### adw_about_dialog_add_legal_section

Adds an extra section to the Legal page.

since: 1.5

###### adw_about_dialog_add_link

Adds an extra link to the Details page.

since: 1.5

###### adw_about_dialog_add_other_app

Adds another application to `self`.

since: 1.7

###### adw_about_dialog_get_appdata_resource_path

Gets the AppStream metadata resource path for `self`.

since: 1.9

###### adw_about_dialog_get_application_icon

Gets the name of the application icon for `self`.

since: 1.5

###### adw_about_dialog_get_application_name

Gets the application name for `self`.

since: 1.5

###### adw_about_dialog_get_artists

Gets the list of artists of the application.

since: 1.5

###### adw_about_dialog_get_comments

Gets the comments about the application.

since: 1.5

###### adw_about_dialog_get_copyright

Gets the copyright information for `self`.

since: 1.5

###### adw_about_dialog_get_debug_info

Gets the debug information for `self`.

since: 1.5

###### adw_about_dialog_get_debug_info_filename

Gets the debug information filename for `self`.

since: 1.5

###### adw_about_dialog_get_designers

Gets the list of designers of the application.

since: 1.5

###### adw_about_dialog_get_developer_name

Gets the developer name for `self`.

since: 1.5

###### adw_about_dialog_get_developers

Gets the list of developers of the application.

since: 1.5

###### adw_about_dialog_get_documenters

Gets the list of documenters of the application.

since: 1.5

###### adw_about_dialog_get_issue_url

Gets the issue tracker URL for `self`.

since: 1.5

###### adw_about_dialog_get_license

Gets the license for `self`.

since: 1.5

###### adw_about_dialog_get_license_type

Gets the license type for `self`.

since: 1.5

###### adw_about_dialog_get_other_apps_title

Gets The other apps section title for `self`.

unstable since: 1.10

###### adw_about_dialog_get_release_notes

Gets the release notes for `self`.

since: 1.5

###### adw_about_dialog_get_release_notes_version

Gets the version described by the application’s release notes.

since: 1.5

###### adw_about_dialog_get_support_url

Gets the URL of the support page for `self`.

since: 1.5

###### adw_about_dialog_get_translator_credits

Gets the translator credits string.

since: 1.5

###### adw_about_dialog_get_version

Gets the version for `self`.

since: 1.5

###### adw_about_dialog_get_website

Gets the application website URL for `self`.

since: 1.5

###### adw_about_dialog_set_application_icon

Sets the name of the application icon for `self`.

since: 1.5

###### adw_about_dialog_set_application_name

Sets the application name for `self`.

since: 1.5

###### adw_about_dialog_set_artists

Sets the list of artists of the application.

since: 1.5

###### adw_about_dialog_set_comments

Sets the comments about the application.

since: 1.5

###### adw_about_dialog_set_copyright

Sets the copyright information for `self`.

since: 1.5

###### adw_about_dialog_set_debug_info

Sets the debug information for `self`.

since: 1.5

###### adw_about_dialog_set_debug_info_filename

Sets the debug information filename for `self`.

since: 1.5

###### adw_about_dialog_set_designers

Sets the list of designers of the application.

since: 1.5

###### adw_about_dialog_set_developer_name

Sets the developer name for `self`.

since: 1.5

###### adw_about_dialog_set_developers

Sets the list of developers of the application.

since: 1.5

###### adw_about_dialog_set_documenters

Sets the list of documenters of the application.

since: 1.5

###### adw_about_dialog_set_issue_url

Sets the issue tracker URL for `self`.

since: 1.5

###### adw_about_dialog_set_license

Sets the license for `self`.

since: 1.5

###### adw_about_dialog_set_license_type

Sets the license for `self` from a list of known licenses.

since: 1.5

###### adw_about_dialog_set_other_apps_title

Sets the “Other apps” section title for `self`.

unstable since: 1.10

###### adw_about_dialog_set_release_notes

Sets the release notes for `self`.

since: 1.5

###### adw_about_dialog_set_release_notes_version

Sets the version described by the application’s release notes.

since: 1.5

###### adw_about_dialog_set_support_url

Sets the URL of the support page for `self`.

since: 1.5

###### adw_about_dialog_set_translator_credits

Sets the translator credits string.

since: 1.5

###### adw_about_dialog_set_version

Sets the version for `self`.

since: 1.5

###### adw_about_dialog_set_website

Sets the application website URL for `self`.

since: 1.5

##### Methods inherited from AdwDialog (23)

###### adw_dialog_add_breakpoint

Adds `breakpoint` to `self`.

since: 1.5

###### adw_dialog_close

Attempts to close `self`.

since: 1.5

###### adw_dialog_force_close

Closes `self`.

since: 1.5

###### adw_dialog_get_can_close

Gets whether `self` can be closed.

since: 1.5

###### adw_dialog_get_child

Gets the child widget of `self`.

since: 1.5

###### adw_dialog_get_content_height

Gets the height of the dialog’s contents.

since: 1.5

###### adw_dialog_get_content_width

Gets the width of the dialog’s contents.

since: 1.5

###### adw_dialog_get_current_breakpoint

Gets the current breakpoint.

since: 1.5

###### adw_dialog_get_default_widget

Gets the default widget for `self`.

since: 1.5

###### adw_dialog_get_focus

Gets the focus widget for `self`.

since: 1.5

###### adw_dialog_get_follows_content_size

Gets whether to size content of `self` automatically.

since: 1.5

###### adw_dialog_get_presentation_mode

Gets presentation mode for `self`.

since: 1.5

###### adw_dialog_get_title

Gets the title of `self`.

since: 1.5

###### adw_dialog_present

Presents `self` within `parent`‘s window.

since: 1.5

###### adw_dialog_set_can_close

Sets whether `self` can be closed.

since: 1.5

###### adw_dialog_set_child

Sets the child widget of `self`.

since: 1.5

###### adw_dialog_set_content_height

Sets the height of the dialog’s contents.

since: 1.5

###### adw_dialog_set_content_width

Sets the width of the dialog’s contents.

since: 1.5

###### adw_dialog_set_default_widget

Sets the default widget for `self`.

since: 1.5

###### adw_dialog_set_focus

Sets the focus widget for `self`.

since: 1.5

###### adw_dialog_set_follows_content_size

Sets whether to size content of `self` automatically.

since: 1.5

###### adw_dialog_set_presentation_mode

Sets presentation mode for `self`.

since: 1.5

###### adw_dialog_set_title

Sets the title of `self`.

since: 1.5

##### Methods inherited from GtkWidget (164)

Please see GtkWidget for a full list of methods.

##### Methods inherited from GObject (43)

Please see GObject for a full list of methods.

##### Methods inherited from GtkAccessible (21)

###### gtk_accessible_announce

Requests the user’s screen reader to announce the given message.

###### gtk_accessible_get_accessible_id

Retrieves the accessible identifier for the accessible object.

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

###### gtk_accessible_get_at_context

Retrieves the implementation for the given accessible object.

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

###### gtk_accessible_get_platform_state

Queries a platform state, such as focus.

###### gtk_accessible_reset_property

Resets the accessible property to its default value.

###### gtk_accessible_reset_relation

Resets the accessible relation to its default value.

###### gtk_accessible_reset_state

Resets the accessible state to its default value.

###### gtk_accessible_set_accessible_parent

Sets the parent and sibling of an accessible object.

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling.

###### gtk_accessible_update_platform_state

Informs ATs that the platform state has changed.

###### gtk_accessible_update_property

Updates a list of accessible properties.

###### gtk_accessible_update_property_value

Updates an array of accessible properties.

###### gtk_accessible_update_relation

Updates a list of accessible relations.

###### gtk_accessible_update_relation_value

Updates an array of accessible relations.

###### gtk_accessible_update_state

Updates a list of accessible states.

###### gtk_accessible_update_state_value

Updates an array of accessible states.

##### Methods inherited from GtkBuildable (1)

###### gtk_buildable_get_buildable_id

Gets the ID of the `buildable` object.

#### Properties

###### Adw.AboutDialog:appdata-resource-path

The path to the Appstream metadata resource.

since: 1.9

###### Adw.AboutDialog:application-icon

The name of the application icon.

since: 1.5

###### Adw.AboutDialog:application-name

The name of the application.

since: 1.5

###### Adw.AboutDialog:artists

The list of artists of the application.

since: 1.5

###### Adw.AboutDialog:comments

The comments about the application.

since: 1.5

###### Adw.AboutDialog:copyright

The copyright information.

since: 1.5

###### Adw.AboutDialog:debug-info

The debug information.

since: 1.5

###### Adw.AboutDialog:debug-info-filename

The debug information filename.

since: 1.5

###### Adw.AboutDialog:designers

The list of designers of the application.

since: 1.5

###### Adw.AboutDialog:developer-name

The developer name.

since: 1.5

###### Adw.AboutDialog:developers

The list of developers of the application.

since: 1.5

###### Adw.AboutDialog:documenters

The list of documenters of the application.

since: 1.5

###### Adw.AboutDialog:issue-url

The URL for the application’s issue tracker.

since: 1.5

###### Adw.AboutDialog:license

The license text.

since: 1.5

###### Adw.AboutDialog:license-type

The license type.

since: 1.5

###### Adw.AboutDialog:other-apps-title

The “Other apps” section title.

unstable since: 1.10

###### Adw.AboutDialog:release-notes

The release notes of the application.

since: 1.5

###### Adw.AboutDialog:release-notes-version

The version described by the application’s release notes.

since: 1.5

###### Adw.AboutDialog:support-url

The URL of the application’s support page.

since: 1.5

###### Adw.AboutDialog:translator-credits

The translator credits string.

since: 1.5

###### Adw.AboutDialog:version

The version of the application.

since: 1.5

###### Adw.AboutDialog:website

The URL of the application’s website.

since: 1.5

##### Properties inherited from AdwDialog (10)

###### Adw.Dialog:can-close

Whether the dialog can be closed.

since: 1.5

###### Adw.Dialog:child

The child widget of the `AdwDialog`.

since: 1.5

###### Adw.Dialog:content-height

The height of the dialog’s contents.

since: 1.5

###### Adw.Dialog:content-width

The width of the dialog’s contents.

since: 1.5

###### Adw.Dialog:current-breakpoint

The current breakpoint.

since: 1.5

###### Adw.Dialog:default-widget

The default widget.

since: 1.5

###### Adw.Dialog:focus-widget

The focus widget.

since: 1.5

###### Adw.Dialog:follows-content-size

Whether to size content automatically.

since: 1.5

###### Adw.Dialog:presentation-mode

The dialog’s presentation mode.

since: 1.5

###### Adw.Dialog:title

The title of the dialog.

since: 1.5

##### Properties inherited from GtkWidget (35)

###### Gtk.Widget:can-focus

Whether the widget or any of its descendents can accept the input focus.

###### Gtk.Widget:can-target

Whether the widget can receive pointer events.

###### Gtk.Widget:css-classes

A list of css classes applied to this widget.

###### Gtk.Widget:css-name

The name of this widget in the CSS tree.

###### Gtk.Widget:cursor

The cursor used by `widget`.

###### Gtk.Widget:focus-on-click

Whether the widget should grab focus when it is clicked with the mouse.

###### Gtk.Widget:focusable

Whether this widget itself will accept the input focus.

###### Gtk.Widget:halign

How to distribute horizontal space if widget gets extra space.

###### Gtk.Widget:has-default

Whether the widget is the default widget.

###### Gtk.Widget:has-focus

Whether the widget has the input focus.

###### Gtk.Widget:has-tooltip

Enables or disables the emission of the `GtkWidget::query-tooltip` signal on `widget`.

###### Gtk.Widget:height-request

Overrides for height request of the widget.

###### Gtk.Widget:hexpand

Whether to expand horizontally.

###### Gtk.Widget:hexpand-set

Whether to use the `hexpand` property.

###### Gtk.Widget:layout-manager

The `GtkLayoutManager` instance to use to compute the preferred size of the widget, and allocate its children.

###### Gtk.Widget:limit-events

Makes this widget act like a modal dialog, with respect to event delivery.

###### Gtk.Widget:margin-bottom

Margin on bottom side of widget.

###### Gtk.Widget:margin-end

Margin on end of widget, horizontally.

###### Gtk.Widget:margin-start

Margin on start of widget, horizontally.

###### Gtk.Widget:margin-top

Margin on top side of widget.

###### Gtk.Widget:name

The name of the widget.

###### Gtk.Widget:opacity

The requested opacity of the widget.

###### Gtk.Widget:overflow

How content outside the widget’s content area is treated.

###### Gtk.Widget:parent

The parent widget of this widget.

###### Gtk.Widget:receives-default

Whether the widget will receive the default action when it is focused.

###### Gtk.Widget:root

The `GtkRoot` widget of the widget tree containing this widget.

###### Gtk.Widget:scale-factor

The scale factor of the widget.

###### Gtk.Widget:sensitive

Whether the widget responds to input.

###### Gtk.Widget:tooltip-markup

Sets the text of tooltip to be the given string, which is marked up with Pango markup.

###### Gtk.Widget:tooltip-text

Sets the text of tooltip to be the given string.

###### Gtk.Widget:valign

How to distribute vertical space if widget gets extra space.

###### Gtk.Widget:vexpand

Whether to expand vertically.

###### Gtk.Widget:vexpand-set

Whether to use the `vexpand` property.

###### Gtk.Widget:visible

Whether the widget is visible.

###### Gtk.Widget:width-request

Overrides for width request of the widget.

##### Properties inherited from GtkAccessible (1)

###### Gtk.Accessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

#### Signals

###### Adw.AboutDialog::activate-link

Emitted when a URL is activated.

since: 1.5

##### Signals inherited from AdwDialog (2)

###### AdwDialog::close-attempt

Emitted when the close button or shortcut is used, or `adw_dialog_close()` is called while `AdwDialog:can-close` is set to `FALSE`.

since: 1.5

###### AdwDialog::closed

Emitted when the dialog is successfully closed.

since: 1.5

##### Signals inherited from GtkWidget (13)

###### GtkWidget::destroy

Signals that all holders of a reference to the widget should release the reference that they hold.

###### GtkWidget::direction-changed

Emitted when the text direction of a widget changes.

###### GtkWidget::hide

Emitted when `widget` is hidden.

###### GtkWidget::keynav-failed

Emitted if keyboard navigation fails.

###### GtkWidget::map

Emitted when `widget` is going to be mapped.

###### GtkWidget::mnemonic-activate

Emitted when a widget is activated via a mnemonic.

###### GtkWidget::move-focus

Emitted when the focus is moved.

###### GtkWidget::query-tooltip

Emitted when the widget’s tooltip is about to be shown.

###### GtkWidget::realize

Emitted when `widget` is associated with a `GdkSurface`.

###### GtkWidget::show

Emitted when `widget` is shown.

###### GtkWidget::state-flags-changed

Emitted when the widget state changes.

###### GtkWidget::unmap

Emitted when `widget` is going to be unmapped.

###### GtkWidget::unrealize

Emitted when the `GdkSurface` associated with `widget` is destroyed.

##### Signals inherited from GObject (1)

###### GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

#### Class structure

    struct AdwAboutDialogClass {
      AdwDialogClass parent_class;

    }

No description available.

###### Class members

`parent_class: AdwDialogClass`

  No description available.