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Class Gtk.Dialog

Import line: Gtk =;
GIR File: Gtk-3.0.gir
C documentation: GtkDialog
Class : Dialog
Implements: Atk.ImplementorIface, Gtk.Buildable
Subclasses: Gtk.AboutDialog, Gtk.AppChooserDialog, Gtk.ColorSelectionDialog
Extends: Gtk.Window
Dialog boxes are a convenient way to prompt the user for a small amount
of input, e.g. to display a message, ask a question, or anything else
that does not require extensive effort on the user's part.
GTK+ treats a dialog as a window split vertically. The top section is a
GtkVBox, and is where widgets such as a GtkLabel or a GtkEntry should
be packed. The bottom area is known as the
action_area. This is generally used for
packing buttons into the dialog which may perform functions such as
cancel, ok, or apply.
GtkDialog boxes are created with a call to gtk_dialog_new() or
gtk_dialog_new_with_buttons(). gtk_dialog_new_with_buttons() is
recommended; it allows you to set the dialog title, some convenient flags,
and add simple buttons.
If 'dialog' is a newly created dialog, the two primary areas of the
window can be accessed through gtk_dialog_get_content_area() and
gtk_dialog_get_action_area(), as can be seen from the example below.
A 'modal' dialog (that is, one which freezes the rest of the application
from user input), can be created by calling gtk_window_set_modal() on the
dialog. Use the GTK_WINDOW() macro to cast the widget returned from
gtk_dialog_new() into a GtkWindow. When using gtk_dialog_new_with_buttons()
you can also pass the GTK_DIALOG_MODAL flag to make a dialog modal.
If you add buttons to GtkDialog using gtk_dialog_new_with_buttons(),
gtk_dialog_add_button(), gtk_dialog_add_buttons(), or
gtk_dialog_add_action_widget(), clicking the button will emit a signal
called GtkDialog::response with a response ID that you specified. GTK+
will never assign a meaning to positive response IDs; these are entirely
user-defined. But for convenience, you can use the response IDs in the
GtkResponseType enumeration (these all have values less than zero). If
a dialog receives a delete event, the GtkDialog::response signal will
be emitted with a response ID of GTK_RESPONSE_DELETE_EVENT.
If you want to block waiting for a dialog to return before returning
control flow to your code, you can call gtk_dialog_run(). This function
enters a recursive main loop and waits for the user to respond to the
dialog, returning the response ID corresponding to the button the user
For the simple dialog in the following example, in reality you'd probably
use GtkMessageDialog to save yourself some effort. But you'd need to
create the dialog contents manually if you had more than a simple message
in the dialog.

Simple GtkDialog usage

/* Function to open a dialog box displaying the message provided. */
quick_message (gchar *message)
GtkWidget *dialog, *label, *content_area;
/* Create the widgets */
dialog = gtk_dialog_new_with_buttons ("Message",
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,
G_CALLBACK (gtk_widget_destroy),
/* Add the label, and show everything we've added to the dialog */
gtk_container_add (GTK_CONTAINER (content_area), label);
gtk_widget_show_all (dialog);

GtkDialog as GtkBuildable

The GtkDialog implementation of the GtkBuildable interface exposes the

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).

A <structname>GtkDialog</structname> UI definition fragment.




Properties Defined By
Methods / Constructors
Method / Constructor Defined By
Events - usage syntax: this.signals.EVENTNAME.connect( Function )
Event Defined By
Used by These Methods / Signals / Properties- Nowhere other than here
Documentation generated by Introspection Doc Generator Loosely Based on JsDoc Toolkit on Sat Apr 16 2011 17:12:30 GMT+0800 (HKT)