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The Wayland implementation of GdkToplevel.

Beyond the [ifaceGdk.Toplevel] API, the Wayland implementation has API to set up cross-process parent-child relationships between surfaces with [methodGdkWayland.WaylandToplevel.export_handle] and [methodGdkWayland.WaylandToplevel.set_transient_for_exported].

Hierarchy

Index

Constructors

Properties

cursor: Gdk.Cursor

The mouse pointer for the GdkSurface.

decorated: boolean

Whether the window manager should add decorations.

deletable: boolean

Whether the window manager should allow to close the surface.

display: Gdk.Display

The GdkDisplay connection of the surface.

frame_clock: Gdk.FrameClock

The GdkFrameClock of the surface.

fullscreen_mode: Gdk.FullscreenMode

The fullscreen mode of the surface.

g_type_instance: TypeInstance
height: number

The height of the surface, in pixels.

icon_list: object

A list of textures to use as icon.

mapped: boolean

Whether the surface is mapped.

modal: boolean

Whether the surface is modal.

scale_factor: number

The scale factor of the surface.

shortcuts_inhibited: boolean

Whether the surface should inhibit keyboard shortcuts.

startup_id: string

The startup ID of the surface.

See [classGdk.AppLaunchContext] for more information about startup feedback.

The state of the toplevel.

title: string

The title of the surface.

transient_for: Gdk.Surface

The transient parent of the surface.

width: number

The width of the surface in pixels.

name: string

Methods

  • beep(): void
  • Emits a short beep associated to surface.

    If the display of surface does not support per-surface beeps, emits a short beep on the display just as [methodGdk.Display.beep].

    Returns void

  • begin_move(device: Gdk.Device, button: number, x: number, y: number, timestamp: number): void
  • Begins an interactive move operation.

    You might use this function to implement draggable titlebars.

    Parameters

    • device: Gdk.Device

      the device used for the operation

    • button: number

      the button being used to drag, or 0 for a keyboard-initiated drag

    • x: number

      surface X coordinate of mouse click that began the drag

    • y: number

      surface Y coordinate of mouse click that began the drag

    • timestamp: number

      timestamp of mouse click that began the drag (use [methodGdk.Event.get_time])

    Returns void

  • begin_resize(edge: SurfaceEdge, device: Gdk.Device, button: number, x: number, y: number, timestamp: number): void
  • Begins an interactive resize operation.

    You might use this function to implement a “window resize grip.”

    Parameters

    • edge: SurfaceEdge

      the edge or corner from which the drag is started

    • device: Gdk.Device

      the device used for the operation

    • button: number

      the button being used to drag, or 0 for a keyboard-initiated drag

    • x: number

      surface X coordinate of mouse click that began the drag

    • y: number

      surface Y coordinate of mouse click that began the drag

    • timestamp: number

      timestamp of mouse click that began the drag (use [methodGdk.Event.get_time])

    Returns void

  • Creates a binding between source_property on source and target_property on target.

    Whenever the source_property is changed the target_property is updated using the same value. For instance:

      g_object_bind_property (action, "active", widget, "sensitive", 0);
    

    Will result in the "sensitive" property of the widget #GObject instance to be updated with the same value of the "active" property of the action #GObject instance.

    If flags contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual: if target_property on target changes then the source_property on source will be updated as well.

    The binding will automatically be removed when either the source or the target instances are finalized. To remove the binding without affecting the source and the target you can just call g_object_unref() on the returned #GBinding instance.

    Removing the binding by calling g_object_unref() on it must only be done if the binding, source and target are only used from a single thread and it is clear that both source and target outlive the binding. Especially it is not safe to rely on this if the binding, source or target can be finalized from different threads. Keep another reference to the binding and use g_binding_unbind() instead to be on the safe side.

    A #GObject can have multiple bindings.

    Parameters

    • source_property: string

      the property on source to bind

    • target: GObject.Object

      the target #GObject

    • target_property: string

      the property on target to bind

    • flags: BindingFlags

      flags to pass to #GBinding

    Returns Binding

  • Creates a binding between source_property on source and target_property on target, allowing you to set the transformation functions to be used by the binding.

    This function is the language bindings friendly version of g_object_bind_property_full(), using #GClosures instead of function pointers.

    Parameters

    • source_property: string

      the property on source to bind

    • target: GObject.Object

      the target #GObject

    • target_property: string

      the property on target to bind

    • flags: BindingFlags

      flags to pass to #GBinding

    • transform_to: TClosure<any, any>

      a #GClosure wrapping the transformation function from the source to the target, or %NULL to use the default

    • transform_from: TClosure<any, any>

      a #GClosure wrapping the transformation function from the target to the source, or %NULL to use the default

    Returns Binding

  • Creates a new GdkGLContext for the GdkSurface.

    The context is disconnected from any particular surface or surface. If the creation of the GdkGLContext failed, error will be set. Before using the returned GdkGLContext, you will need to call [methodGdk.GLContext.make_current] or [methodGdk.GLContext.realize].

    Returns Gdk.GLContext

  • Create a new Cairo surface that is as compatible as possible with the given surface.

    For example the new surface will have the same fallback resolution and font options as surface. Generally, the new surface will also use the same backend as surface, unless that is not possible for some reason. The type of the returned surface may be examined with cairo_surface_get_type().

    Initially the surface contents are all 0 (transparent if contents have transparency, black otherwise.)

    This function always returns a valid pointer, but it will return a pointer to a “nil” surface if other is already in an error state or any other error occurs.

    Parameters

    • content: cairo.Content

      the content for the new surface

    • width: number

      width of the new surface

    • height: number

      height of the new surface

    Returns cairo.Surface

  • destroy(): void
  • Destroys the window system resources associated with surface and decrements surface's reference count.

    The window system resources for all children of surface are also destroyed, but the children’s reference counts are not decremented.

    Note that a surface will not be destroyed automatically when its reference count reaches zero. You must call this function yourself before that happens.

    Returns void

  • disconnect(id: number): void
  • emit(sigName: "notify::cursor", ...args: any[]): void
  • emit(sigName: "notify::display", ...args: any[]): void
  • emit(sigName: "notify::frame-clock", ...args: any[]): void
  • emit(sigName: "notify::height", ...args: any[]): void
  • emit(sigName: "notify::mapped", ...args: any[]): void
  • emit(sigName: "notify::scale-factor", ...args: any[]): void
  • emit(sigName: "notify::width", ...args: any[]): void
  • emit(sigName: "notify::decorated", ...args: any[]): void
  • emit(sigName: "notify::deletable", ...args: any[]): void
  • emit(sigName: "notify::fullscreen-mode", ...args: any[]): void
  • emit(sigName: "notify::icon-list", ...args: any[]): void
  • emit(sigName: "notify::modal", ...args: any[]): void
  • emit(sigName: "notify::shortcuts-inhibited", ...args: any[]): void
  • emit(sigName: "notify::startup-id", ...args: any[]): void
  • emit(sigName: "notify::state", ...args: any[]): void
  • emit(sigName: "notify::title", ...args: any[]): void
  • emit(sigName: "notify::transient-for", ...args: any[]): void
  • emit(sigName: string, ...args: any[]): void
  • Asynchronously obtains a handle for a surface that can be passed to other processes.

    When the handle has been obtained, callback will be called.

    It is an error to call this function on a surface that is already exported.

    When the handle is no longer needed, [methodGdkWayland.WaylandToplevel.unexport_handle] should be called to clean up resources.

    The main purpose for obtaining a handle is to mark a surface from another surface as transient for this one, see [methodGdkWayland.WaylandToplevel.set_transient_for_exported].

    Note that this API depends on an unstable Wayland protocol, and thus may require changes in the future.

    Parameters

    Returns boolean

  • focus(timestamp: number): void
  • Sets keyboard focus to surface.

    In most cases, [methodGtk.Window.present_with_time] should be used on a [classGtk.Window], rather than calling this function.

    Parameters

    • timestamp: number

      timestamp of the event triggering the surface focus

    Returns void

  • force_floating(): void
  • This function is intended for #GObject implementations to re-enforce a [floating][floating-ref] object reference. Doing this is seldom required: all #GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink().

    Returns void

  • freeze_notify(): void
  • Increases the freeze count on object. If the freeze count is non-zero, the emission of "notify" signals on object is stopped. The signals are queued until the freeze count is decreased to zero. Duplicate notifications are squashed so that at most one #GObject::notify signal is emitted for each property modified while the object is frozen.

    This is necessary for accessors that modify multiple properties to prevent premature notification while the object is still being modified.

    Returns void

  • Retrieves a GdkCursor pointer for the cursor currently set on the GdkSurface.

    If the return value is %NULL then there is no custom cursor set on the surface, and it is using the cursor for its parent surface.

    Use [methodGdk.Surface.set_cursor] to unset the cursor of the surface.

    Returns Gdk.Cursor

  • get_data(key?: string): object
  • Retrieves a GdkCursor pointer for the device currently set on the specified GdkSurface.

    If the return value is %NULL then there is no custom cursor set on the specified surface, and it is using the cursor for its parent surface.

    Use [methodGdk.Surface.set_cursor] to unset the cursor of the surface.

    Parameters

    Returns Gdk.Cursor

  • get_height(): number
  • get_mapped(): boolean
  • get_property(property_name?: string, value?: any): void
  • Gets a property of an object.

    The value can be:

    • an empty #GValue initialized by %G_VALUE_INIT, which will be automatically initialized with the expected type of the property (since GLib 2.60)
    • a #GValue initialized with the expected type of the property
    • a #GValue initialized with a type to which the expected type of the property can be transformed

    In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling g_value_unset().

    Note that g_object_get_property() is really intended for language bindings, g_object_get() is much more convenient for C programming.

    Parameters

    • Optional property_name: string

      the name of the property to get

    • Optional value: any

      return location for the property value

    Returns void

  • get_qdata(quark: number): object
  • get_scale_factor(): number
  • Returns the internal scale factor that maps from surface coordinates to the actual device pixels.

    On traditional systems this is 1, but on very high density outputs this can be a higher value (often 2). A higher value means that drawing is automatically scaled up to a higher resolution, so any code doing drawing will automatically look nicer. However, if you are supplying pixel-based data the scale value can be used to determine whether to use a pixel resource with higher resolution data.

    The scale of a surface may change during runtime.

    Returns number

  • get_width(): number
  • Returns the width of the given surface.

    Surface size is reported in ”application pixels”, not ”device pixels” (see [methodGdk.Surface.get_scale_factor]).

    Returns number

  • getv(names: string[], values: any[]): void
  • Gets n_properties properties for an object. Obtained properties will be set to values. All properties must be valid. Warnings will be emitted and undefined behaviour may result if invalid properties are passed in.

    Parameters

    • names: string[]

      the names of each property to get

    • values: any[]

      the values of each property to get

    Returns void

  • hide(): void
  • Hide the surface.

    For toplevel surfaces, withdraws them, so they will no longer be known to the window manager; for all surfaces, unmaps them, so they won’t be displayed. Normally done automatically as part of [methodGtk.Widget.hide].

    Returns void

  • inhibit_system_shortcuts(event: Gdk.Event): void
  • Requests that the toplevel inhibit the system shortcuts.

    This is asking the desktop environment/windowing system to let all keyboard events reach the surface, as long as it is focused, instead of triggering system actions.

    If granted, the rerouting remains active until the default shortcuts processing is restored with [methodGdk.Toplevel.restore_system_shortcuts], or the request is revoked by the desktop environment, windowing system or the user.

    A typical use case for this API is remote desktop or virtual machine viewers which need to inhibit the default system keyboard shortcuts so that the remote session or virtual host gets those instead of the local environment.

    The windowing system or desktop environment may ask the user to grant or deny the request or even choose to ignore the request entirely.

    The caller can be notified whenever the request is granted or revoked by listening to the [propertyGdk.Toplevel:shortcuts-inhibited] property.

    Parameters

    • event: Gdk.Event

      the GdkEvent that is triggering the inhibit request, or %NULL if none is available

    Returns void

  • is_destroyed(): boolean
  • is_floating(): boolean
  • lower(): boolean
  • minimize(): boolean
  • notify(property_name: string): void
  • Emits a "notify" signal for the property property_name on object.

    When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.

    Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.

    Parameters

    • property_name: string

      the name of a property installed on the class of object.

    Returns void

  • Emits a "notify" signal for the property specified by pspec on object.

    This function omits the property name lookup, hence it is faster than g_object_notify().

    One way to avoid using g_object_notify() from within the class that registered the properties, and using g_object_notify_by_pspec() instead, is to store the GParamSpec used with g_object_class_install_property() inside a static array, e.g.:

      enum
    {
    PROP_0,
    PROP_FOO,
    PROP_LAST
    };

    static GParamSpec *properties[PROP_LAST];

    static void
    my_object_class_init (MyObjectClass *klass)
    {
    properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
    0, 100,
    50,
    G_PARAM_READWRITE);
    g_object_class_install_property (gobject_class,
    PROP_FOO,
    properties[PROP_FOO]);
    }

    and then notify a change on the "foo" property with:

      g_object_notify_by_pspec (self, properties[PROP_FOO]);
    

    Parameters

    • pspec: ParamSpec

      the #GParamSpec of a property installed on the class of object.

    Returns void

  • Present toplevel after having processed the GdkToplevelLayout rules.

    If the toplevel was previously not showing, it will be showed, otherwise it will change layout according to layout.

    GDK may emit the [signalGdk.Toplevel::compute-size] signal to let the user of this toplevel compute the preferred size of the toplevel surface.

    Presenting is asynchronous and the specified layout parameters are not guaranteed to be respected.

    Parameters

    Returns void

  • queue_render(): void
  • Increases the reference count of object.

    Since GLib 2.56, if GLIB_VERSION_MAX_ALLOWED is 2.56 or greater, the type of object will be propagated to the return type (using the GCC typeof() extension), so any casting the caller needs to do on the return type must be explicit.

    Returns GObject.Object

  • Increase the reference count of object, and possibly remove the [floating][floating-ref] reference, if object has a floating reference.

    In other words, if the object is floating, then this call "assumes ownership" of the floating reference, converting it to a normal reference by clearing the floating flag while leaving the reference count unchanged. If the object is not floating, then this call adds a new normal reference increasing the reference count by one.

    Since GLib 2.56, the type of object will be propagated to the return type under the same conditions as for g_object_ref().

    Returns GObject.Object

  • request_layout(): void
  • restore_system_shortcuts(): void
  • run_dispose(): void
  • set_application_id(application_id: string): void
  • Sets the default mouse pointer for a GdkSurface.

    Passing %NULL for the cursor argument means that surface will use the cursor of its parent surface. Most surfaces should use this default. Note that cursor must be for the same display as surface.

    Use [ctorGdk.Cursor.new_from_name] or [ctorGdk.Cursor.new_from_texture] to create the cursor. To make the cursor invisible, use %GDK_BLANK_CURSOR.

    Parameters

    Returns void

  • set_data(key: string, data?: object): void
  • Each object carries around a table of associations from strings to pointers. This function lets you set an association.

    If the object already had an association with that name, the old association will be destroyed.

    Internally, the key is converted to a #GQuark using g_quark_from_string(). This means a copy of key is kept permanently (even after object has been finalized) — so it is recommended to only use a small, bounded set of values for key in your program, to avoid the #GQuark storage growing unbounded.

    Parameters

    • key: string

      name of the key

    • Optional data: object

      data to associate with that key

    Returns void

  • set_decorated(decorated: boolean): void
  • Sets the toplevel to be decorated.

    Setting decorated to %FALSE hints the desktop environment that the surface has its own, client-side decorations and does not need to have window decorations added.

    Parameters

    • decorated: boolean

      %TRUE to request decorations

    Returns void

  • set_deletable(deletable: boolean): void
  • Sets the toplevel to be deletable.

    Setting deletable to %TRUE hints the desktop environment that it should offer the user a way to close the surface.

    Parameters

    • deletable: boolean

      %TRUE to request a delete button

    Returns void

  • Sets a specific GdkCursor for a given device when it gets inside surface.

    Passing %NULL for the cursor argument means that surface will use the cursor of its parent surface. Most surfaces should use this default.

    Use [ctorGdk.Cursor.new_from_name] or [ctorGdk.Cursor.new_from_texture] to create the cursor. To make the cursor invisible, use %GDK_BLANK_CURSOR.

    Parameters

    Returns void

  • Sets a list of icons for the surface.

    One of these will be used to represent the surface in iconic form. The icon may be shown in window lists or task bars. Which icon size is shown depends on the window manager. The window manager can scale the icon but setting several size icons can give better image quality.

    Note that some platforms don't support surface icons.

    Parameters

    • surfaces: Gdk.Texture[]

      A list of textures to use as icon, of different sizes

    Returns void

  • Apply the region to the surface for the purpose of event handling.

    Mouse events which happen while the pointer position corresponds to an unset bit in the mask will be passed on the surface below surface.

    An input region is typically used with RGBA surfaces. The alpha channel of the surface defines which pixels are invisible and allows for nicely antialiased borders, and the input region controls where the surface is “clickable”.

    Use [methodGdk.Display.supports_input_shapes] to find out if a particular backend supports input regions.

    Parameters

    Returns void

  • set_modal(modal: boolean): void
  • Sets the toplevel to be modal.

    The application can use this hint to tell the window manager that a certain surface has modal behaviour. The window manager can use this information to handle modal surfaces in a special way.

    You should only use this on surfaces for which you have previously called [methodGdk.Toplevel.set_transient_for].

    Parameters

    • modal: boolean

      %TRUE if the surface is modal, %FALSE otherwise.

    Returns void

  • Marks a region of the GdkSurface as opaque.

    For optimisation purposes, compositing window managers may like to not draw obscured regions of surfaces, or turn off blending during for these regions. With RGB windows with no transparency, this is just the shape of the window, but with ARGB32 windows, the compositor does not know what regions of the window are transparent or not.

    This function only works for toplevel surfaces.

    GTK will update this property automatically if the surface background is opaque, as we know where the opaque regions are. If your surface background is not opaque, please update this property in your [vfuncGtk.Widget.css_changed] handler.

    Parameters

    • region: cairo.Region

      a region, or %NULL to make the entire surface opaque

    Returns void

  • set_property(property_name: string, value?: any): void
  • set_startup_id(startup_id: string): void
  • Sets the startup notification ID.

    When using GTK, typically you should use [methodGtk.Window.set_startup_id] instead of this low-level function.

    Parameters

    • startup_id: string

      a string with startup-notification identifier

    Returns void

  • set_title(title: string): void
  • Sets the title of a toplevel surface.

    The title maybe be displayed in the titlebar, in lists of windows, etc.

    Parameters

    • title: string

      title of surface

    Returns void

  • Sets a transient-for parent.

    Indicates to the window manager that surface is a transient dialog associated with the application surface parent. This allows the window manager to do things like center surface on parent and keep surface above parent.

    See [methodGtk.Window.set_transient_for] if you’re using [classGtk.Window] or [classGtk.Dialog].

    Parameters

    Returns void

  • set_transient_for_exported(parent_handle_str: string): boolean
  • Marks toplevel as transient for the surface to which the given parent_handle_str refers.

    Typically, the handle will originate from a [methodGdkWayland.WaylandToplevel.export_handle] call in another process.

    Note that this API depends on an unstable Wayland protocol, and thus may require changes in the future.

    Parameters

    • parent_handle_str: string

      an exported handle for a surface

    Returns boolean

  • show_window_menu(event: Gdk.Event): boolean
  • Asks the windowing system to show the window menu.

    The window menu is the menu shown when right-clicking the titlebar on traditional windows managed by the window manager. This is useful for windows using client-side decorations, activating it with a right-click on the window decorations.

    Parameters

    • event: Gdk.Event

      a GdkEvent to show the menu for

    Returns boolean

  • steal_data(key?: string): object
  • steal_qdata(quark: number): object
  • This function gets back user data pointers stored via g_object_set_qdata() and removes the data from object without invoking its destroy() function (if any was set). Usually, calling this function is only required to update user data pointers with a destroy notifier, for example:

    void
    object_add_to_user_list (GObject *object,
    const gchar *new_string)
    {
    // the quark, naming the object data
    GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
    // retrieve the old string list
    GList *list = g_object_steal_qdata (object, quark_string_list);

    // prepend new string
    list = g_list_prepend (list, g_strdup (new_string));
    // this changed 'list', so we need to set it again
    g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
    }
    static void
    free_string_list (gpointer data)
    {
    GList *node, *list = data;

    for (node = list; node; node = node->next)
    g_free (node->data);
    g_list_free (list);
    }

    Using g_object_get_qdata() in the above example, instead of g_object_steal_qdata() would have left the destroy function set, and thus the partial string list would have been freed upon g_object_set_qdata_full().

    Parameters

    • quark: number

      A #GQuark, naming the user data pointer

    Returns object

  • supports_edge_constraints(): boolean
  • thaw_notify(): void
  • Reverts the effect of a previous call to g_object_freeze_notify(). The freeze count is decreased on object and when it reaches zero, queued "notify" signals are emitted.

    Duplicate notifications for each property are squashed so that at most one #GObject::notify signal is emitted for each property, in the reverse order in which they have been queued.

    It is an error to call this function when the freeze count is zero.

    Returns void

  • translate_coordinates(to: Gdk.Surface, x: number, y: number): [boolean, number, number]
  • Translates coordinates between two surfaces.

    Note that this only works if to and from are popups or transient-for to the same toplevel (directly or indirectly).

    Parameters

    • to: Gdk.Surface

      the target surface

    • x: number

      coordinates to translate

    • y: number

      coordinates to translate

    Returns [boolean, number, number]

  • unexport_handle(): void
  • Destroys the handle that was obtained with gdk_wayland_toplevel_export_handle().

    It is an error to call this function on a surface that does not have a handle.

    Note that this API depends on an unstable Wayland protocol, and thus may require changes in the future.

    Returns void

  • unref(): void
  • Decreases the reference count of object. When its reference count drops to 0, the object is finalized (i.e. its memory is freed).

    If the pointer to the #GObject may be reused in future (for example, if it is an instance variable of another object), it is recommended to clear the pointer to %NULL rather than retain a dangling pointer to a potentially invalid #GObject instance. Use g_clear_object() for this.

    Returns void

  • vfunc_constructed(): void
  • vfunc_dispatch_properties_changed(n_pspecs: number, pspecs: ParamSpec): void
  • vfunc_dispose(): void
  • vfunc_finalize(): void
  • vfunc_get_property(property_id: number, value?: any, pspec?: ParamSpec): void
  • Emits a "notify" signal for the property property_name on object.

    When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.

    Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.

    virtual

    Parameters

    Returns void

  • vfunc_set_property(property_id: number, value?: any, pspec?: ParamSpec): void
  • watch_closure(closure: TClosure<any, any>): void
  • This function essentially limits the life time of the closure to the life time of the object. That is, when the object is finalized, the closure is invalidated by calling g_closure_invalidate() on it, in order to prevent invocations of the closure with a finalized (nonexisting) object. Also, g_object_ref() and g_object_unref() are added as marshal guards to the closure, to ensure that an extra reference count is held on object during invocation of the closure. Usually, this function will be called on closures that use this object as closure data.

    Parameters

    • closure: TClosure<any, any>

      #GClosure to watch

    Returns void

  • compat_control(what: number, data: object): number
  • Find the #GParamSpec with the given name for an interface. Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek().

    Parameters

    • g_iface: TypeInterface

      any interface vtable for the interface, or the default vtable for the interface

    • property_name: string

      name of a property to look up.

    Returns ParamSpec

  • Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created #GParamSpec, but normally g_object_class_override_property() will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property.

    This function is meant to be called from the interface's default vtable initialization function (the class_init member of #GTypeInfo.) It must not be called after after class_init has been called for any object types implementing this interface.

    If pspec is a floating reference, it will be consumed.

    Parameters

    • g_iface: TypeInterface

      any interface vtable for the interface, or the default vtable for the interface.

    • pspec: ParamSpec

      the #GParamSpec for the new property

    Returns void

  • Lists the properties of an interface.Generally, the interface vtable passed in as g_iface will be the default vtable from g_type_default_interface_ref(), or, if you know the interface has already been loaded, g_type_default_interface_peek().

    Parameters

    • g_iface: TypeInterface

      any interface vtable for the interface, or the default vtable for the interface

    Returns ParamSpec[]

  • Create a new popup surface.

    The surface will be attached to parent and can be positioned relative to it using [methodGdk.Popup.present].

    Parameters

    • parent: Gdk.Surface

      the parent surface to attach the surface to

    • autohide: boolean

      whether to hide the surface on outside clicks

    Returns Gdk.Surface

  • Creates a new instance of a #GObject subtype and sets its properties.

    Construction parameters (see %G_PARAM_CONSTRUCT, %G_PARAM_CONSTRUCT_ONLY) which are not explicitly specified are set to their default values.

    Parameters

    • object_type: GType<unknown>

      the type id of the #GObject subtype to instantiate

    • parameters: GObject.Parameter[]

      an array of #GParameter

    Returns GObject.Object

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