code: func (g *Gui) ViewPosition(name string) (x0, y0, x1, y1 int, err error) {
  	for _, v := range g.views {
  		if v.name == name {
  			return v.x0, v.y0, v.x1, v.y1, nil
  		}
  	}
  	return 0, 0, 0, 0, ErrUnknownView
  }
docs: // ViewPosition returns the coordinates of the view with the given name, or
  // error ErrUnknownView if a view with that name does not exist.