// wxTimer
 // ----------------------------------------------------------------------------
 
-IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxEvtHandler)
 
-extern "C" gint timeout_callback( gpointer data )
+extern "C" {
+static gint timeout_callback( gpointer data )
 {
     wxTimer *timer = (wxTimer*)data;
 
 
     return TRUE;
 }
+}
 
 void wxTimer::Init()
 {