Synopsis

                    IBusText;
IBusText*           ibus_text_new_from_string           (const gchar *str);
IBusText*           ibus_text_new_from_ucs4             (const gunichar *str);
IBusText*           ibus_text_new_from_static_string    (const gchar *str);
IBusText*           ibus_text_new_from_printf           (const gchar *fmt,
                                                         ...);
IBusText*           ibus_text_new_from_unichar          (gunichar c);
void                ibus_text_append_attribute          (IBusText *text,
                                                         guint type,
                                                         guint value,
                                                         guint start_index,
                                                         gint end_index);
guint               ibus_text_get_length                (IBusText *text);