Method update

src/laybasic/laybasic/layViewObject.cc:1220–1225

#if !defined(HAVE_QT)
void
ViewObjectUI::update ()
{
  //  NOTE: this does not need to be thread-safe as we make sure (as in Qt) that update() is always called from the main thread.
  m_image_updated = true;
}

bool
ViewObjectUI::image_updated ()