Re: Emitting destroy signal

[Jeff Franks <adsln7hl tpg com au>]

Russell Shaw wrote:
> Hi,
> I made a composite widget (Table) that inherits from GtkVbox.
> I packed this into a GtkWindow in main.c When the "exit" button
> is clicked in the Table widget, on_exit_clicked is called (in table.c),
> which emits "destroy_event":
>
> static void
> on_exit_clicked(GtkWidget *button, gpointer data)
> {
>     Table *table=(Table*)data;
>     g_signal_emit_by_name(table,"destroy_event",0/*detail*/,NULL);

Your emitting the destroy_event on the table, therefore only the table 
is destroyed.

> }
>
>
> In main.c, i have:
>
>
> static gboolean
> destroy_cb(GtkWidget *widget, GdkEvent *event, gpointer user_data)
> {
>     gtk_widget_destroy(widget);
> }
> .
> .
> main()
> {
> ...
>   GtkWidget *window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
>   Table *table=table_new();
>   gtk_container_add(GTK_CONTAINER(window),table);
>   g_signal_connect(table,"destroy_event",G_CALLBACK(destroy_cb),window);
> ...
> }
>
>
> When the exit button in the table widget is clicked, the table widget
> is destroyed, but its parent container (a GtkWindow) remains. How do
> i get that to be destroyed too?

Connect your exit button (swapped) to gtk_widget_destroy() like this:

g_signal_connect_swapped (G_OBJECT (button), "clicked",
                          G_CALLBACK (gtk_widget_destroy),
                          G_OBJECT (window));

Jeff.