Package org.gnome.gtk

Class MessageDialog

java.lang.Object
org.javagi.base.ProxyInstance
org.gnome.gobject.TypeInstance
org.gnome.gobject.GObject
org.gnome.gobject.InitiallyUnowned
org.gnome.gtk.Widget
org.gnome.gtk.Window
org.gnome.gtk.Dialog
org.gnome.gtk.MessageDialog
All Implemented Interfaces:
Accessible, Buildable, ConstraintTarget, Native, Root, ShortcutManager, Proxy
@Generated("io.github.jwharm.JavaGI") @Deprecated public class MessageDialog extends Dialog implements Accessible, Buildable, ConstraintTarget, Native, Root, ShortcutManager
Deprecated.
Use AlertDialog instead
GtkMessageDialog presents a dialog with some message text.

An example GtkMessageDialog

It’s simply a convenience widget; you could construct the equivalent of GtkMessageDialog from GtkDialog without too much effort, but GtkMessageDialog saves typing.

The easiest way to do a modal message dialog is to use the DialogFlags.MODAL flag, which will call Window.setModal(boolean) internally. The dialog will prevent interaction with the parent window until it's hidden or destroyed. You can use the Gtk.Dialog::response signal to know when the user dismissed the dialog.

An example for using a modal dialog: 

GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL;
 dialog = gtk_message_dialog_new (parent_window,
                                  flags,
                                  GTK_MESSAGE_ERROR,
                                  GTK_BUTTONS_CLOSE,
                                  "Error reading “%s”: %s",
                                  filename,
                                  g_strerror (errno));
 // Destroy the dialog when the user responds to it
 // (e.g. clicks a button)

 g_signal_connect (dialog, "response",
                   G_CALLBACK (gtk_window_destroy),
                   NULL);

You might do a non-modal GtkMessageDialog simply by omitting the DialogFlags.MODAL flag: 

GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT;
 dialog = gtk_message_dialog_new (parent_window,
                                  flags,
                                  GTK_MESSAGE_ERROR,
                                  GTK_BUTTONS_CLOSE,
                                  "Error reading “%s”: %s",
                                  filename,
                                  g_strerror (errno));

 // Destroy the dialog when the user responds to it
 // (e.g. clicks a button)
 g_signal_connect (dialog, "response",
                   G_CALLBACK (gtk_window_destroy),
                   NULL);

GtkMessageDialog as GtkBuildable
The GtkMessageDialog implementation of the GtkBuildable interface exposes the message area as an internal child with the name “message_area”.