AboutDialog#

class AboutDialog(*args, **kwargs)#

Superclasses: Window, Widget, InitiallyUnowned, Object

Implemented Interfaces: Accessible, Buildable, ConstraintTarget, Native, Root, ShortcutManager

Displays information about a program.

The shown information includes the programs’ logo, name, copyright, website and license. It is also possible to give credits to the authors, documenters, translators and artists who have worked on the program.

An about dialog is typically opened when the user selects the About option from the Help menu. All parts of the dialog are optional.

https://docs.gtk.org/gtk4/aboutdialog.png

About dialogs often contain links and email addresses. GtkAboutDialog displays these as clickable links. By default, it calls launch when a user clicks one. The behaviour can be overridden with the activate_link signal.

To specify a person with an email address, use a string like Edgar Allan Poe <edgar@poe.com>. To specify a website with a title, use a string like GTK team https://www.gtk.org.

To make constructing an about dialog as convenient as possible, you can use the function show_about_dialog which constructs and shows a dialog and keeps it around so that it can be shown again.

Note that GTK sets a default title of _("About %s") on the dialog window (where %s is replaced by the name of the application, but in order to ensure proper translation of the title, applications should set the title property explicitly when constructing an about dialog, as shown in the following example:

GFile *logo_file = g_file_new_for_path ("./logo.png");
GdkTexture *example_logo = gdk_texture_new_from_file (logo_file, NULL);
g_object_unref (logo_file);

gtk_show_about_dialog (NULL,
                       "program-name", "ExampleCode",
                       "logo", example_logo,
                       "title", _("About ExampleCode"),
                       NULL);

Shortcuts and Gestures#

GtkAboutDialog supports the following keyboard shortcuts:

Escape closes the window.

CSS nodes#

GtkAboutDialog has a single CSS node with the name window and style class .aboutdialog.

Constructors#

class AboutDialog

classmethod new() → Widget#: Creates a new GtkAboutDialog.

Methods#

class AboutDialog

add_credit_section(section_name: str, people: list[str]) → None#

Creates a new section in the “Credits” page.

Parameters:

section_name – The name of the section
people – the people who belong to that section

get_artists() → list[str]#: Returns the names of the artists which are displayed in the credits page.

get_authors() → list[str]#: Returns the names of the authors which are displayed in the credits page.

get_comments() → str | None#: Returns the comments string.

get_copyright() → str | None#: Returns the copyright string.

get_documenters() → list[str]#: Returns the name of the documenters which are displayed in the credits page.

get_license() → str | None#: Returns the license information.

get_license_type() → License#: Retrieves the license type.

get_logo() → Paintable | None#: Returns the paintable displayed as logo in the about dialog.

get_logo_icon_name() → str | None#: Returns the icon name displayed as logo in the about dialog.

get_program_name() → str | None#: Returns the program name displayed in the about dialog.

get_system_information() → str | None#: Returns the system information that is shown in the about dialog.

get_translator_credits() → str | None#: Returns the translator credits string which is displayed in the credits page.

get_version() → str | None#: Returns the version string.

get_website() → str | None#: Returns the website URL.

get_website_label() → str | None#: Returns the label used for the website link.

get_wrap_license() → bool#: Returns whether the license text in the about dialog is automatically wrapped.

set_artists(artists: list[str]) → None#

Sets the names of the artists to be displayed in the “Credits” page.

Parameters:: artists – the authors of the artwork of the application

set_authors(authors: list[str]) → None#

Sets the names of the authors which are displayed in the “Credits” page of the about dialog.

Parameters:: authors – the authors of the application

set_comments(comments: str | None = None) → None#

Sets the comments string to display in the about dialog.

This should be a short string of one or two lines.

Parameters:: comments – a comments string

set_copyright(copyright: str | None = None) → None#

Sets the copyright string to display in the about dialog.

This should be a short string of one or two lines.

Parameters:: copyright – the copyright string

set_documenters(documenters: list[str]) → None#

Sets the names of the documenters which are displayed in the “Credits” page.

Parameters:: documenters – the authors of the documentation of the application

set_license(license: str | None = None) → None#

Sets the license information to be displayed in the about dialog.

If license is NULL, the license page is hidden.

Parameters:: license – the license information

set_license_type(license_type: License) → None#

Sets the license of the application showing the about dialog from a list of known licenses.

This function overrides the license set using set_license.

Parameters:: license_type – the type of license

set_logo(logo: Paintable | None = None) → None#

Sets the logo in the about dialog.

Parameters:: logo – a GdkPaintable

set_logo_icon_name(icon_name: str | None = None) → None#

Sets the icon name to be displayed as logo in the about dialog.

Parameters:: icon_name – an icon name

set_program_name(name: str | None = None) → None#

Sets the name to display in the about dialog.

If name is not set, the string returned by g_get_application_name() is used.

Parameters:: name – the program name

set_system_information(system_information: str | None = None) → None#

Sets the system information to be displayed in the about dialog.

If system_information is NULL, the system information page is hidden.

See system_information.

Parameters:: system_information – system information

set_translator_credits(translator_credits: str | None = None) → None#

Sets the translator credits string which is displayed in the credits page.

The intended use for this string is to display the translator of the language which is currently used in the user interface. Using gettext(), a simple way to achieve that is to mark the string for translation:

GtkWidget *about = gtk_about_dialog_new ();
 gtk_about_dialog_set_translator_credits (GTK_ABOUT_DIALOG (about),
                                          _("translator-credits"));

It is a good idea to use the customary msgid “translator-credits” for this purpose, since translators will already know the purpose of that msgid, and since GtkAboutDialog will detect if “translator-credits” is untranslated and omit translator credits.

Parameters:: translator_credits – the translator credits

set_version(version: str | None = None) → None#

Sets the version string to display in the about dialog.

Parameters:: version – the version string

set_website(website: str | None = None) → None#

Sets the URL to use for the website link.

Parameters:: website – a URL string starting with http://

set_website_label(website_label: str) → None#

Sets the label to be used for the website link.

Parameters:: website_label – the label used for the website link

set_wrap_license(wrap_license: bool) → None#

Sets whether the license text in the about dialog should be automatically wrapped.

Parameters:: wrap_license – whether to wrap the license

Properties#

class AboutDialog

props.artists: list[str]#

The people who contributed artwork to the program.

Each string may contain email addresses and URLs, which will be displayed as links.

props.authors: list[str]#

The authors of the program.

Each string may contain email addresses and URLs, which will be displayed as links, see the introduction for more details.

props.comments: str#

Comments about the program.

This string is displayed in a label in the main dialog, thus it should be a short explanation of the main purpose of the program, not a detailed list of features.

props.copyright: str#: Copyright information for the program.

props.documenters: list[str]#

The people documenting the program.

Each string may contain email addresses and URLs, which will be displayed as links, see the introduction for more details.

props.license: str#

The license of the program, as free-form text.

This string is displayed in a text view in a secondary dialog, therefore it is fine to use a long multi-paragraph text. Note that the text is only wrapped in the text view if the “wrap-license” property is set to TRUE; otherwise the text itself must contain the intended linebreaks.

When setting this property to a non-NULL value, the license_type property is set to custom as a side effect.

The text may contain links in this format <http://www.some.place/> and email references in the form <mail-to@some.body>, and these will be converted into clickable links.

props.license_type: License#

The license of the program.

The GtkAboutDialog will automatically fill out a standard disclaimer and link the user to the appropriate online resource for the license text.

If unknown is used, the link used will be the same specified in the website property.

If custom is used, the current contents of the license property are used.

For any other License value, the contents of the license property are also set by this property as a side effect.

props.logo: Paintable#

A logo for the about box.

If it is NULL, the default window icon set with set_default_icon_name will be used.

props.logo_icon_name: str#

A named icon to use as the logo for the about box.

This property overrides the logo property.

props.program_name: str#

The name of the program.

If this is not set, it defaults to the value returned by get_application_name.

props.system_information: str#

Information about the system on which the program is running.

This information is displayed in a separate page, therefore it is fine to use a long multi-paragraph text. Note that the text should contain the intended linebreaks.

The text may contain links in this format <http://www.some.place/> and email references in the form <mail-to@some.body>, and these will be converted into clickable links.

props.translator_credits: str#

Credits to the translators.

This string should be marked as translatable.

The string may contain email addresses and URLs, which will be displayed as links, see the introduction for more details.

props.version: str#: The version of the program.

props.website: str#

The URL for the link to the website of the program.

This should be a string starting with http:// or https://.

props.website_label: str#: The label for the link to the website of the program.

props.wrap_license: bool#: Whether to wrap the text in the license dialog.

Signals#

class AboutDialog.signals

activate_link(uri: str) → bool#

Emitted every time a URL is activated.

Applications may connect to it to override the default behaviour, which is to call launch.

Parameters:: uri – the URI that is activated