--- a/include/mb_observer.h	Wed Dec 08 18:59:44 2010 +0800
+++ b/include/mb_observer.h	Wed Dec 08 19:17:03 2010 +0800
@@ -82,6 +82,13 @@
     observer_t *observer; /*!< \brief Observer been added or removed. */
 };
 
+struct _mb_kb_event {
+    event_t event;
+    int keycode;
+    int sym;
+};
+typedef struct _mb_kb_event mb_kb_event_t;
+
 /*! \brief Observer factory.
  *
  * It provides functions for allocation of subject and observer objects,