GtkDialog

GtkDialog as GtkBuildable

The GtkDialog implementation of the GtkBuildable interface exposes the vbox and action_area as internal children with the names “vbox” and “action_area”.

GtkDialog supports a custom <action-widgets> element, which can contain multiple <action-widget> elements. The “response” attribute specifies a numeric response, and the content of the element is the id of widget (which should be a child of the dialogs action_area ). To mark a response as default, set the “default“ attribute of the <action-widget> element to true.

GtkDialog supports adding action widgets by specifying “action“ as the “type“ attribute of a <child> element. The widget will be added either to the action area or the headerbar of the dialog, depending on the “use-header-bar“ property. The response id has to be associated with the action widget using the <action-widgets> element.

An example of a GtkDialog UI definition fragment:

gtk_dialog_new ()

GtkWidget *
gtk_dialog_new (void);

Creates a new dialog box.

Widgets should not be packed into this GtkWindow directly, but into the vbox and action_area , as described above.

gtk_dialog_new_with_buttons ()

GtkWidget *
gtk_dialog_new_with_buttons (const gchar *title,
                             GtkWindow *parent,
                             GtkDialogFlags flags,
                             const gchar *first_button_text,
                             ...);

Creates a new GtkDialog with title title (or NULL for the default title; see gtk_window_set_title()) and transient parent parent (or NULL for none; see gtk_window_set_transient_for()). The flags argument can be used to make the dialog modal (GTK_DIALOG_MODAL) and/or to have it destroyed along with its transient parent (GTK_DIALOG_DESTROY_WITH_PARENT). After flags , button text/response ID pairs should be listed, with a NULL pointer ending the list. Button text can be arbitrary text. A response ID can be any positive number, or one of the values in the GtkResponseType enumeration. If the user clicks one of these dialog buttons, GtkDialog will emit the “response” signal with the corresponding response ID. If a GtkDialog receives the “delete-event” signal, it will emit ::response with a response ID of GTK_RESPONSE_DELETE_EVENT. However, destroying a dialog does not emit the ::response signal; so be careful relying on ::response when using the GTK_DIALOG_DESTROY_WITH_PARENT flag. Buttons are from left to right, so the first button in the list will be the leftmost button in the dialog.

Here’s a simple example:

gtk_dialog_run ()

gint
gtk_dialog_run (GtkDialog *dialog);

Blocks in a recursive main loop until the dialog either emits the “response” signal, or is destroyed. If the dialog is destroyed during the call to gtk_dialog_run(), gtk_dialog_run() returns GTK_RESPONSE_NONE. Otherwise, it returns the response ID from the ::response signal emission.

Before entering the recursive main loop, gtk_dialog_run() calls gtk_widget_show() on the dialog for you. Note that you still need to show any children of the dialog yourself.

During gtk_dialog_run(), the default behavior of “delete-event” is disabled; if the dialog receives ::delete_event, it will not be destroyed as windows usually are, and gtk_dialog_run() will return GTK_RESPONSE_DELETE_EVENT. Also, during gtk_dialog_run() the dialog will be modal. You can force gtk_dialog_run() to return at any time by calling gtk_dialog_response() to emit the ::response signal. Destroying the dialog during gtk_dialog_run() is a very bad idea, because your post-run code won’t know whether the dialog was destroyed or not.

After gtk_dialog_run() returns, you are responsible for hiding or destroying the dialog if you wish to do so.

Typical usage of this function might be:

Note that even though the recursive main loop gives the effect of a modal dialog (it prevents the user from interacting with other windows in the same window group while the dialog is run), callbacks such as timeouts, IO channel watches, DND drops, etc, will be triggered during a gtk_dialog_run() call.

gtk_dialog_response ()

void
gtk_dialog_response (GtkDialog *dialog,
                     gint response_id);

Emits the “response” signal with the given response ID. Used to indicate that the user has responded to the dialog in some way; typically either you or gtk_dialog_run() will be monitoring the ::response signal and take appropriate action.

gtk_dialog_add_button ()

GtkWidget *
gtk_dialog_add_button (GtkDialog *dialog,
                       const gchar *button_text,
                       gint response_id);

Adds a button with the given text and sets things up so that clicking the button will emit the “response” signal with the given response_id . The button is appended to the end of the dialog’s action area. The button widget is returned, but usually you don’t need it.

gtk_dialog_add_buttons ()

void
gtk_dialog_add_buttons (GtkDialog *dialog,
                        const gchar *first_button_text,
                        ...);

Adds more buttons, same as calling gtk_dialog_add_button() repeatedly. The variable argument list should be NULL-terminated as with gtk_dialog_new_with_buttons(). Each button must have both text and response ID.

gtk_dialog_add_action_widget ()

void
gtk_dialog_add_action_widget (GtkDialog *dialog,
                              GtkWidget *child,
                              gint response_id);

Adds an activatable widget to the action area of a GtkDialog, connecting a signal handler that will emit the “response” signal on the dialog when the widget is activated. The widget is appended to the end of the dialog’s action area. If you want to add a non-activatable widget, simply pack it into the action_area field of the GtkDialog struct.

gtk_dialog_set_default_response ()

void
gtk_dialog_set_default_response (GtkDialog *dialog,
                                 gint response_id);

Sets the last widget in the dialog’s action area with the given response_id as the default widget for the dialog. Pressing “Enter” normally activates the default widget.

gtk_dialog_set_response_sensitive ()

void
gtk_dialog_set_response_sensitive (GtkDialog *dialog,
                                   gint response_id,
                                   gboolean setting);

Calls gtk_widget_set_sensitive (widget, @setting) for each widget in the dialog’s action area with the given response_id . A convenient way to sensitize/desensitize dialog buttons.

gtk_dialog_get_response_for_widget ()

gint
gtk_dialog_get_response_for_widget (GtkDialog *dialog,
                                    GtkWidget *widget);

Gets the response id of a widget in the action area of a dialog.

Since: 2.8

gtk_dialog_get_widget_for_response ()

GtkWidget *
gtk_dialog_get_widget_for_response (GtkDialog *dialog,
                                    gint response_id);

Gets the widget button that uses the given response ID in the action area of a dialog.

Since: 2.20

gtk_dialog_get_action_area ()

GtkWidget *
gtk_dialog_get_action_area (GtkDialog *dialog);

Returns the action area of dialog .

Since: 2.14

gtk_dialog_get_content_area ()

GtkWidget *
gtk_dialog_get_content_area (GtkDialog *dialog);

Returns the content area of dialog .

Since: 2.14

gtk_dialog_get_header_bar ()

GtkWidget *
gtk_dialog_get_header_bar (GtkDialog *dialog);

Returns the header bar of dialog . Note that the headerbar is only used by the dialog if the “use-header-bar” property is TRUE.

Since: 3.12

gtk_alternative_dialog_button_order ()

gboolean
gtk_alternative_dialog_button_order (GdkScreen *screen);

Returns TRUE if dialogs are expected to use an alternative button order on the screen screen . See gtk_dialog_set_alternative_button_order() for more details about alternative button order.

If you need to use this function, you should probably connect to the ::notify:gtk-alternative-button-order signal on the GtkSettings object associated to screen , in order to be notified if the button order setting changes.

Since: 2.6

gtk_dialog_set_alternative_button_order ()

void
gtk_dialog_set_alternative_button_order
                               (GtkDialog *dialog,
                                gint first_response_id,
                                ...);

Sets an alternative button order. If the “gtk-alternative-button-order” setting is set to TRUE, the dialog buttons are reordered according to the order of the response ids passed to this function.

By default, GTK+ dialogs use the button order advocated by the GNOME Human Interface Guidelines with the affirmative button at the far right, and the cancel button left of it. But the builtin GTK+ dialogs and GtkMessageDialogs do provide an alternative button order, which is more suitable on some platforms, e.g. Windows.

Use this function after adding all the buttons to your dialog, as the following example shows:

// Function to open a dialog box with a message
void
quick_message (GtkWindow *parent, gchar *message)
{
 GtkWidget *dialog, *label, *content_area;
 GtkDialogFlags flags;

 // Create the widgets
 flags = GTK_DIALOG_DESTROY_WITH_PARENT;
 dialog = gtk_dialog_new_with_buttons ("Message",
                                       parent,
                                       flags,
                                       _("_OK"),
                                       GTK_RESPONSE_NONE,
                                       NULL);
 content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
 label = gtk_label_new (message);

 // Ensure that the dialog box is destroyed when the user responds

 g_signal_connect_swapped (dialog,
                           "response",
                           G_CALLBACK (gtk_widget_destroy),
                           dialog);

 // Add the label, and show everything we’ve added

 gtk_container_add (GTK_CONTAINER (content_area), label);
 gtk_widget_show_all (dialog);
}

Since: 2.6

gtk_dialog_set_alternative_button_order_from_array ()

void
gtk_dialog_set_alternative_button_order_from_array
                               (GtkDialog *dialog,
                                gint n_params,
                                gint *new_order);

Sets an alternative button order. If the “gtk-alternative-button-order” setting is set to TRUE, the dialog buttons are reordered according to the order of the response ids in new_order .

See gtk_dialog_set_alternative_button_order() for more information.

This function is for use by language bindings.

Since: 2.6

struct GtkDialog

struct GtkDialog;

The GtkDialog contains only private fields and should not be directly accessed.

struct GtkDialogClass

struct GtkDialogClass {
  GtkWindowClass parent_class;

  void (* response) (GtkDialog *dialog, gint response_id);

  /* Keybinding signals */

  void (* close)    (GtkDialog *dialog);
};

enum GtkDialogFlags

Flags used to influence dialog construction.

enum GtkResponseType

Predefined values for use as response ids in gtk_dialog_add_button(). All predefined values are negative; GTK+ leaves values of 0 or greater for application-defined response ids.

The “use-header-bar” property

  “use-header-bar”           int

TRUE if the dialog uses a GtkHeaderBar for action buttons instead of the action-area.

For technical reasons, this property is declared as an integer property, but you should only set it to TRUE or FALSE.

Owner: GtkDialog

Flags: Read / Write / Construct Only

Allowed values: [-1,1]

Default value: -1

Since: 3.12

The “action-area-border” style property

  “action-area-border”       int

The default border width used around the action area of the dialog, as returned by gtk_dialog_get_action_area(), unless gtk_container_set_border_width() was called on that widget directly.

Owner: GtkDialog

Flags: Read

Allowed values: >= 0

Default value: 5

The “button-spacing” style property

  “button-spacing”           int

Spacing between buttons.

Owner: GtkDialog

Flags: Read

Allowed values: >= 0

Default value: 6

The “content-area-border” style property

  “content-area-border”      int

The default border width used around the content area of the dialog, as returned by gtk_dialog_get_content_area(), unless gtk_container_set_border_width() was called on that widget directly.

Owner: GtkDialog

Flags: Read

Allowed values: >= 0

Default value: 2

The “content-area-spacing” style property

  “content-area-spacing”     int

The default spacing used between elements of the content area of the dialog, as returned by gtk_dialog_get_content_area(), unless gtk_box_set_spacing() was called on that widget directly.

Owner: GtkDialog

Flags: Read

Allowed values: >= 0

Default value: 0

Since: 2.16

The “close” signal

void
user_function (GtkDialog *dialog,
               gpointer   user_data)

The ::close signal is a keybinding signal which gets emitted when the user uses a keybinding to close the dialog.

The default binding for this signal is the Escape key.

Flags: Action

The “response” signal

void
user_function (GtkDialog *dialog,
               int        response_id,
               gpointer   user_data)

Emitted when an action widget is clicked, the dialog receives a delete event, or the application programmer calls gtk_dialog_response(). On a delete event, the response ID is GTK_RESPONSE_DELETE_EVENT. Otherwise, it depends on which action widget was clicked.

Flags: Run Last