GtkLabel Question

[Brian Cameron <Brian Cameron Sun COM>]

Gtk Experts:

I need to be able to access a substring of the text within a GtkLabel.
For example.  Lets say the GtkLabel contains a string that is 
20 characters long and I want to access the substring from offset
5-10.

What is the best way to do this?  I notice that the GtkEntry logic in
gtk_entry_get_chars looks like this:

  if (end_pos < 0)
    end_pos = entry->text_length;

  start_pos = MIN (entry->text_length, start_pos);
  end_pos = MIN (entry->text_length, end_pos);

  start_index = g_utf8_offset_to_pointer (entry->text, start_pos) - entry->text;
  end_index = g_utf8_offset_to_pointer (entry->text, end_pos) - entry->text;

  return g_strndup (entry->text + start_index, end_index - start_index);

However, GtkLabel also doesn't seem to keep track of its text length.
Should I just usse g_utf8_strlen() to get this? 

Thanks!

Brian