diff --git a/include/wx/os2/frame.h b/include/wx/os2/frame.h
index 468341d98e..67a9dc775b 100644
--- a/include/wx/os2/frame.h
+++ b/include/wx/os2/frame.h
@@ -140,6 +140,10 @@ public:
     void   SetToolTipCtrl(WXHWND hHwndTT) { m_hWndToolTip = hHwndTT; }
 #endif // tooltips
 
+    void      SetClient(WXHWND    c_Hwnd);
+    void      SetClient(wxWindow* c_Window);
+    wxWindow *GetClient();
+
 protected:
     // common part of all ctors
     void         Init(void);