class CDragDropListBox : public CWindowImpl<CDragDropListBox, CListBox>
{
    typedef CWindowImpl<CDragDropListBox, CListBox> _baseclass;
public:
    CDragDropListBox();
    virtual ~CDragDropListBox();
    DragDropManager* ddManager;
public:
    BEGIN_MSG_MAP(CDragDropListBox, CListBox)
        MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
        MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
        MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
        MESSAGE_HANDLER(WM_CREATE, OnCreate)
    END_MSG_MAP()


    LRESULT OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
    LRESULT OnLButtonUp(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
    LRESULT OnMouseMove(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
    LRESULT OnCreate(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
};