class MyChild: public wxMDIChildFrame, wxScrolledWindow
{
public:

    MyChild(wxMDIParentFrame *parent, const wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, const wxBitmap& bitmap);
	MyChild(wxScrolledWindow *parent);
    virtual ~MyChild();

	void OnPaint(wxPaintEvent& event);

...

    DECLARE_EVENT_TABLE()
};

MyChild::MyChild(wxMDIParentFrame *parent, 
				 const wxWindowID id, 
				 const wxString& title,
                 const wxPoint& pos, 
				 const wxSize& size,
				 const wxBitmap& bitmap)
       : wxMDIChildFrame(parent, -1, image_name, 
						wxDefaultPosition, wxDefaultSize), 
						m_bitmap(bitmap),
		 wxScrolledWindow(parent)
{
	...	
}

BEGIN_EVENT_TABLE(MyChild, wxMDIChildFrame) // how can i integrate wxScrolledWindow?
	EVT_PAINT(MyChild::OnPaint)
	EVT_MOUSE_EVENTS(MyChild::OnMouse)
	EVT_SIZE(MyChild::OnSize)
	EVT_SCROLL(MyChild::OnScroll)
	EVT_CHOICE(FUNC_CHOICE, MyChild::OnFuncChoice)
	EVT_CHOICE(SOURCE_CHOICE, MyChild::OnSourceChoice)
	EVT_CHOICE(DEST_CHOICE, MyChild::OnDestChoice)
END_EVENT_TABLE()