1. kbd interface for wxScrolledWindow

2. wxWindow::Set/GetExtraStyle()
3. wxWS_EX_VALIDATE_RECURSIVELY added and implemented
4. docs updated to reflect (2) an (3)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5659 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/scrolwin.h

@@ -123,6 +123,7 @@ public:
     void OnScroll(wxScrollWinEvent& event);
     void OnSize(wxSizeEvent& event);
     void OnPaint(wxPaintEvent& event);
+    void OnKeyDown(wxKeyEvent& event);
 
     // Calculate scroll increment
     virtual int CalcScrollInc(wxScrollWinEvent& event);