DoDrawImage(*m_windowDC, newPos);
#else // !wxHAS_NATIVE_OVERLAY
wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);
DoDrawImage(*m_windowDC, newPos);
#else // !wxHAS_NATIVE_OVERLAY
wxBitmap* backing = (m_pBackingBitmap ? m_pBackingBitmap : (wxBitmap*) & m_backingBitmap);