GTK+ notebook - unable to print current label text - c

Question

Hello everyone,
I'm currently trying to convert my PyGTK application to C, everything was
working as expected until I hit an issue with retrieving label name of my notebook widget.
Below is a short example of what I'm trying to achieve..
GtkBuilder *builder = NULL;
GtkWidget *window = NULL;
GtkWidget *notebook = NULL;
GError *error = NULL;
void on_page_switch(GtkNotebook *notebook, gpointer data)
{
// gtk_notebook_get_tab_label_text(GtkNotebook *notebook,GtkWidget *child)
}
int main (int argc, char *argv[])
{
gtk_init (&argc, &argv);
builder = gtk_builder_new ();
if( ! gtk_builder_add_from_file( builder, "data/glade.glade", &error ) )
{
g_warning( "%s", error->message );
g_free( error );
return( 1 );
}
window = GTK_WIDGET (gtk_builder_get_object (builder, "window1"));
gtk_window_set_resizable (GTK_WINDOW(window), FALSE);
g_signal_connect(window, "destroy", GTK_SIGNAL_FUNC (on_window_destroy), NULL);
notebook = GTK_WIDGET (gtk_builder_get_object (builder, "notebook1"));
g_signal_connect(GTK_NOTEBOOK (notebook), "switch-page", GTK_SIGNAL_FUNC(on_page_switch), NULL);
gtk_builder_connect_signals (builder, NULL);
g_object_unref (G_OBJECT (builder));
gtk_widget_show_all(window);
gtk_main ();
return 0;
}
Could you please give me some pointers as how to get the current tab's label name?
I believe it should be this function gtk_notebook_get_tab_label_text(GtkNotebook *notebook, GtkWidget *child) , however I was unable to get it working too.
Apologies for my bad english.
Thanks in advance,
Alex
/// EDIT ////
It was actualy the call-back function it self that was wrong..
I have missed couple of pointers that are passed with the "switch-page" event.
void on_page_switch(GtkNotebook * notebook, GtkWidget *page, guint page_num, gpointer user_data)
{
GtkWidget * child = gtk_notebook_get_nth_page(notebook, page_num);
printf(" -> %i \n", gtk_notebook_page_num(notebook, child));
}

Answer 1

Correct, you should be able to use gtk_notebook_get_tab_label_text() to do this.
You need a pointer to the child widget (page content) whose label you're interested in, you can use gtk_notebook_get_nth_page() to get that if you don't have the notebook children handy.
It's hard to help more since you didn't specify what problems you ran in to when you tried it.