virtual void Refresh(bool eraseBackground = true,
const wxRect *rect = (const wxRect *) NULL);
virtual void Update();
virtual void Refresh(bool eraseBackground = true,
const wxRect *rect = (const wxRect *) NULL);
virtual void Update();
friend class wxNonOwnedWindow; // for HandleXXXEvent
friend class wxOverlayImpl; // for Add/RemoveOverlay
friend class wxNonOwnedWindow; // for HandleXXXEvent
friend class wxOverlayImpl; // for Add/RemoveOverlay