class WXDLLEXPORT wxWindow;
class WXDLLEXPORT wxPoint;
class WXDLLEXPORT wxRect;
class WXDLLEXPORT wxWindow;
class WXDLLEXPORT wxPoint;
class WXDLLEXPORT wxRect;
// return true if the object was initialized successfully
bool IsOk() const { return m_impl != NULL; }
// return true if the object was initialized successfully
bool IsOk() const { return m_impl != NULL; }