### Class

# Gtk Window

#### Description [src]

    class Gtk.Window : Gtk.Widget
      implements Gtk.Accessible, Gtk.Buildable, Gtk.ConstraintTarget, Gtk.Native, Gtk.Root, Gtk.ShortcutManager {
      /* No available fields */
    }

A `GtkWindow` is a toplevel window which can contain other widgets.

Windows normally have decorations that are under the control of the windowing system and allow the user to manipulate the window (resize it, move it, close it,…).

# GtkWindow as GtkBuildable

The `GtkWindow` implementation of the `GtkBuildable` interface supports setting a child as the titlebar by specifying “titlebar” as the “type” attribute of a `<child>` element.

# CSS nodes

    window.background [.csd / .solid-csd / .ssd] [.maximized / .fullscreen / .tiled]
    ├── <child>
    ╰── <titlebar child>.titlebar [.default-decoration]

`GtkWindow` has a main CSS node with name window and style class .background.

Style classes that are typically used with the main CSS node are .csd (when client-side decorations are in use), .solid-csd (for client-side decorations without invisible borders), .ssd (used by mutter when rendering server-side decorations). GtkWindow also represents window states with the following style classes on the main node: .maximized, .fullscreen, .tiled (when supported, also .tiled-top, .tiled-left, .tiled-right, .tiled-bottom).

`GtkWindow` subclasses often add their own discriminating style classes, such as .dialog, .popup or .tooltip.

Generally, some CSS properties don’t make sense on the toplevel window node, such as margins or padding. When client-side decorations without invisible borders are in use (i.e. the .solid-csd style class is added to the main window node), the CSS border of the toplevel window is used for resize drags. In the .csd case, the shadow area outside of the window can be used to resize it.

`GtkWindow` adds the .titlebar and .default-decoration style classes to the widget that is added as a titlebar child.

# Accessibility

Until GTK 4.10, `GtkWindow` used the `GTK_ACCESSIBLE_ROLE_WINDOW` role.

Since GTK 4.12, `GtkWindow` uses the `GTK_ACCESSIBLE_ROLE_APPLICATION` role.

# Actions

`GtkWindow` defines a set of built-in actions: - `default.activate`: Activate the default widget. - `window.minimize`: Minimize the window. - `window.toggle-maximized`: Maximize or restore the window. - `window.close`: Close the window.

#### Hierarchy

#### Ancestors

- GtkWidget
- GInitiallyUnowned
- GObject

#### Descendants

- GtkAboutDialog
- GtkApplicationWindow
- GtkAssistant
- GtkDialog
- GtkShortcutsWindow

#### Implements

- GtkAccessible
- GtkBuildable
- GtkConstraintTarget
- GtkNative
- GtkRoot
- GtkShortcutManager

#### Constructors

###### gtk_window_new

Creates a new `GtkWindow`.

#### Functions

###### gtk_window_get_default_icon_name

Returns the fallback icon name for windows.

###### gtk_window_get_toplevels

Returns a list of all existing toplevel windows.

###### gtk_window_list_toplevels

Returns a list of all existing toplevel windows.

###### gtk_window_set_auto_startup_notification

Sets whether the window should request startup notification.

###### gtk_window_set_default_icon_name

Sets an icon to be used as fallback.

###### gtk_window_set_interactive_debugging

Opens or closes the interactive debugger.

#### Instance methods

###### gtk_window_close

Requests that the window is closed.

###### gtk_window_destroy

Drop the internal reference GTK holds on toplevel windows.

###### gtk_window_fullscreen

Asks to place `window` in the fullscreen state.

###### gtk_window_fullscreen_on_monitor

Asks to place `window` in the fullscreen state on the given `monitor`.

###### gtk_window_get_application

Gets the `GtkApplication` associated with the window.

###### gtk_window_get_child

Gets the child widget of `window`.

###### gtk_window_get_decorated

Returns whether the window has been set to have decorations.

###### gtk_window_get_default_size

Gets the default size of the window.

###### gtk_window_get_default_widget

Returns the default widget for `window`.

###### gtk_window_get_deletable

Returns whether the window has been set to have a close button.

###### gtk_window_get_destroy_with_parent

Returns whether the window will be destroyed with its transient parent.

###### gtk_window_get_focus

Retrieves the current focused widget within the window.

###### gtk_window_get_focus_visible

Gets whether “focus rectangles” are supposed to be visible.

###### gtk_window_get_group

Returns the group for `window`.

###### gtk_window_get_handle_menubar_accel

Returns whether this window reacts to F10 key presses by activating a menubar it contains.

since: 4.2

###### gtk_window_get_hide_on_close

Returns whether the window will be hidden when the close button is clicked.

###### gtk_window_get_icon_name

Returns the name of the themed icon for the window.

###### gtk_window_get_mnemonics_visible

Gets whether mnemonics are supposed to be visible.

###### gtk_window_get_modal

Returns whether the window is modal.

###### gtk_window_get_resizable

Gets the value set by gtk_window_set_resizable().

###### gtk_window_get_title

Retrieves the title of the window.

###### gtk_window_get_titlebar

Returns the custom titlebar that has been set with gtk_window_set_titlebar().

###### gtk_window_get_transient_for

Fetches the transient parent for this window.

###### gtk_window_has_group

Returns whether `window` has an explicit window group.

###### gtk_window_is_active

Returns whether the window is part of the current active toplevel.

###### gtk_window_is_fullscreen

Retrieves the current fullscreen state of `window`.

###### gtk_window_is_maximized

Retrieves the current maximized state of `window`.

###### gtk_window_is_suspended

Retrieves the current suspended state of `window`.

since: 4.12

###### gtk_window_maximize

Asks to maximize `window`, so that it fills the screen.

###### gtk_window_minimize

Asks to minimize the specified `window`.

###### gtk_window_present

Presents a window to the user.

###### gtk_window_present_with_time

Presents a window to the user in response to an user interaction.

deprecated: 4.14

###### gtk_window_set_application

Sets or unsets the `GtkApplication` associated with the window.

###### gtk_window_set_child

Sets the child widget of `window`.

###### gtk_window_set_decorated

Sets whether the window should be decorated.

###### gtk_window_set_default_size

Sets the default size of a window.

###### gtk_window_set_default_widget

Sets the default widget.

###### gtk_window_set_deletable

Sets whether the window should be deletable.

###### gtk_window_set_destroy_with_parent

If `setting` is `TRUE`, then destroying the transient parent of `window` will also destroy `window` itself.

###### gtk_window_set_display

Sets the `GdkDisplay` where the `window` is displayed.

###### gtk_window_set_focus

Sets the focus widget.

###### gtk_window_set_focus_visible

Sets whether “focus rectangles” are supposed to be visible.

###### gtk_window_set_handle_menubar_accel

Sets whether this window should react to F10 key presses by activating a menubar it contains.

since: 4.2

###### gtk_window_set_hide_on_close

If `setting` is `TRUE`, then clicking the close button on the window will not destroy it, but only hide it.

###### gtk_window_set_icon_name

Sets the icon for the window from a named themed icon.

###### gtk_window_set_mnemonics_visible

Sets whether mnemonics are supposed to be visible.

###### gtk_window_set_modal

Sets a window modal or non-modal.

###### gtk_window_set_resizable

Sets whether the user can resize a window.

###### gtk_window_set_startup_id

Sets the startup notification ID.

###### gtk_window_set_title

Sets the title of the `GtkWindow`.

###### gtk_window_set_titlebar

Sets a custom titlebar for `window`.

###### gtk_window_set_transient_for

Dialog windows should be set transient for the main application window they were spawned from. This allows window managers to e.g. keep the dialog on top of the main window, or center the dialog over the main window. `gtk_dialog_new_with_buttons()` and other convenience functions in GTK will sometimes call `gtk_window_set_transient_for()` on your behalf.

###### gtk_window_unfullscreen

Asks to remove the fullscreen state for `window`, and return to its previous state.

###### gtk_window_unmaximize

Asks to unmaximize `window`.

###### gtk_window_unminimize

Asks to unminimize the specified `window`.

##### Methods inherited from GtkWidget (162)

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 (19)

###### gtk_accessible_announce

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

since: 4.14

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

since: 4.10

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

###### gtk_accessible_get_at_context

Retrieves the accessible implementation for the given `GtkAccessible`.

since: 4.10

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

since: 4.10

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

since: 4.10

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

since: 4.10

###### gtk_accessible_get_platform_state

Query a platform state, such as focus.

since: 4.10

###### 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.

since: 4.10

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling of `self`.

since: 4.10

###### 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. See the `GtkAccessibleState` documentation for the value types 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.

##### Methods inherited from GtkNative (5)

###### gtk_native_get_renderer

Returns the renderer that is used for this `GtkNative`.

###### gtk_native_get_surface

Returns the surface of this `GtkNative`.

###### gtk_native_get_surface_transform

Retrieves the surface transform of `self`.

###### gtk_native_realize

Realizes a `GtkNative`.

###### gtk_native_unrealize

Unrealizes a `GtkNative`.

##### Methods inherited from GtkRoot (3)

###### gtk_root_get_display

Returns the display that this `GtkRoot` is on.

###### gtk_root_get_focus

Retrieves the current focused widget within the root.

###### gtk_root_set_focus

If `focus` is not the current focus widget, and is focusable, sets it as the focus widget for the root.

#### Properties

###### Gtk.Window:application

The `GtkApplication` associated with the window.

###### Gtk.Window:child

The child widget.

###### Gtk.Window:decorated

Whether the window should have a frame (also known as decorations).

###### Gtk.Window:default-height

The default height of the window.

###### Gtk.Window:default-widget

The default widget.

###### Gtk.Window:default-width

The default width of the window.

###### Gtk.Window:deletable

Whether the window frame should have a close button.

###### Gtk.Window:destroy-with-parent

If this window should be destroyed when the parent is destroyed.

###### Gtk.Window:display

The display that will display this window.

###### Gtk.Window:focus-visible

Whether ‘focus rectangles’ are currently visible in this window.

###### Gtk.Window:focus-widget

The focus widget.

###### Gtk.Window:fullscreened

Whether the window is fullscreen.

###### Gtk.Window:handle-menubar-accel

Whether the window frame should handle F10 for activating menubars.

since: 4.2

###### Gtk.Window:hide-on-close

If this window should be hidden when the users clicks the close button.

###### Gtk.Window:icon-name

Specifies the name of the themed icon to use as the window icon.

###### Gtk.Window:is-active

Whether the toplevel is the currently active window.

###### Gtk.Window:maximized

Whether the window is maximized.

###### Gtk.Window:mnemonics-visible

Whether mnemonics are currently visible in this window.

###### Gtk.Window:modal

If `TRUE`, the window is modal.

###### Gtk.Window:resizable

If `TRUE`, users can resize the window.

###### Gtk.Window:startup-id

A write-only property for setting window’s startup notification identifier.

###### Gtk.Window:suspended

Whether the window is suspended.

since: 4.12

###### Gtk.Window:title

The title of the window.

###### Gtk.Window:titlebar

The titlebar widget.

since: 4.6

###### Gtk.Window:transient-for

The transient parent of the window.

##### Properties inherited from GtkWidget (34)

###### 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 ::query-tooltip signal on `widget`.

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

Override 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: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

Override for width request of the widget.

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

###### GtkAccessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

#### Signals

###### Gtk.Window::activate-default

Emitted when the user activates the default widget of `window`.

###### Gtk.Window::activate-focus

Emitted when the user activates the currently focused widget of `window`.

###### Gtk.Window::close-request

Emitted when the user clicks on the close button of the window.

###### Gtk.Window::enable-debugging

Emitted when the user enables or disables interactive debugging.

###### Gtk.Window::keys-changed

Emitted when the set of accelerators or mnemonics that are associated with `window` changes.

deprecated: 4.10

##### 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 GtkWindowClass {
      GtkWidgetClass parent_class;
      void (* activate_focus) (
        GtkWindow* window
      );
      void (* activate_default) (
        GtkWindow* window
      );
      void (* keys_changed) (
        GtkWindow* window
      );
      gboolean (* enable_debugging) (
        GtkWindow* window,
        gboolean toggle
      );
      gboolean (* close_request) (
        GtkWindow* window
      );

    }

No description available.

###### Class members

`parent_class: GtkWidgetClass`

  The parent class.

`activate_focus: void (* activate_focus) ( GtkWindow* window )`

  Activates the current focused widget within the window.

`activate_default: void (* activate_default) ( GtkWindow* window )`

  Activates the default widget for the window.

`keys_changed: void (* keys_changed) ( GtkWindow* window )`

  Signal gets emitted when the set of accelerators or mnemonics that are associated with window changes.

`enable_debugging: gboolean (* enable_debugging) ( GtkWindow* window, gboolean toggle )`

  Class handler for the `GtkWindow::enable-debugging` keybinding signal.

`close_request: gboolean (* close_request) ( GtkWindow* window )`

  Class handler for the `GtkWindow::close-request` signal.

#### Virtual methods

###### Gtk.WindowClass.activate_default

Activates the default widget for the window.

###### Gtk.WindowClass.activate_focus

Activates the current focused widget within the window.

###### Gtk.WindowClass.close_request

Class handler for the `GtkWindow::close-request` signal.

###### Gtk.WindowClass.enable_debugging

Class handler for the `GtkWindow::enable-debugging` keybinding signal.

###### Gtk.WindowClass.keys_changed

Signal gets emitted when the set of accelerators or mnemonics that are associated with window changes.