Index: testtext.c
===================================================================
--- testtext.c	(revision 18656)
+++ testtext.c	(working copy)
@@ -2610,6 +2610,18 @@ cursor_set_callback (GtkTextBuffer     *
 
       gdk_window_invalidate_rect (tab_window, NULL, FALSE);
     }
+    else
+    {
+    	const gchar *name;
+	GtkTextIter iter;
+	
+	name = gtk_text_mark_get_name (mark);
+	gtk_text_buffer_get_iter_at_mark (buffer, &iter, mark);
+	
+	g_print ("Mark '%s' set: %d\n", 
+		 name,
+		 gtk_text_iter_get_offset (&iter));
+    }
 }
 
 static gint
@@ -2901,6 +2913,8 @@ create_view (Buffer *buffer)
   GtkWidget *copy_menu;
   GtkWidget *sw;
   GtkWidget *vbox;
+  GtkTextIter iter;
+  GtkTextMark *mark;
   
   view = g_new0 (View, 1);
   views = g_slist_prepend (views, view);
@@ -2960,6 +2974,13 @@ create_view (Buffer *buffer)
                                         GTK_TEXT_WINDOW_BOTTOM,
                                         15);
 
+  gtk_text_buffer_get_start_iter (view->buffer->buffer, &iter);
+  
+  gtk_text_buffer_insert (view->buffer->buffer, 
+  			  &iter,
+  			  "Text text text", 
+  			  -1);
+    			       
   g_signal_connect (view->text_view,
                     "expose_event",
                     G_CALLBACK (tab_stops_expose),
@@ -2969,6 +2990,14 @@ create_view (Buffer *buffer)
 		    "mark_set",
 		    G_CALLBACK (cursor_set_callback),
 		    view->text_view);
+
+  gtk_text_buffer_get_iter_at_offset (view->buffer->buffer, &iter, 2);
+  
+  mark = gtk_text_buffer_create_mark (view->buffer->buffer,
+  			       "PROVA",
+  			       &iter,
+  			       TRUE);
+  gtk_text_mark_set_visible (mark, TRUE);
   
   /* Draw line numbers in the side windows; we should really be
    * more scientific about what width we set them to.