Lots of OS/2 Updates mirroring msw updates

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10377 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/os2/frame.h

@@ -66,7 +66,6 @@ public:
 
     // override some more virtuals
     virtual bool Show(bool bShow = TRUE);
-    virtual void RemoveChild(wxWindowBase* pChild);
 
     // event handlers
     void OnActivate(wxActivateEvent& rEvent);
@@ -141,6 +140,12 @@ public:
     void   SetToolTipCtrl(WXHWND hHwndTT) { m_hWndToolTip = hHwndTT; }
 #endif // tooltips
 
+    //
+    // Called by wxWindow whenever it gets focus
+    //
+    void SetLastFocus(wxWindow* pWin) { m_pWinLastFocused = pWin; }
+    wxWindow *GetLastFocus(void) const { return m_pWinLastFocused; }
+
     void      SetClient(WXHWND    c_Hwnd);
     void      SetClient(wxWindow* c_Window);
     wxWindow *GetClient();