// For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
+#include "wx/scrolbar.h"
+
 #ifndef WX_PRECOMP
     #include "wx/utils.h"
 #endif
 
-#include "wx/scrolbar.h"
 #include "wx/os2/private.h"
 
-IMPLEMENT_DYNAMIC_CLASS(wxScrollBar, wxControl)
-
 // Scrollbar
 bool wxScrollBar::Create(wxWindow* pParent,
                          wxWindowID vId,
     vEvent.SetOrientation(IsVertical() ? wxVERTICAL : wxHORIZONTAL);
     vEvent.SetPosition(nPosition);
     vEvent.SetEventObject(this);
-    return GetEventHandler()->ProcessEvent(vEvent);
+    return HandleWindowEvent(vEvent);
 } // end of wxScrollBar::OS2OnScroll
 
 void wxScrollBar::SetThumbPosition ( int nViewStart )