'Declaration

Public Property IsGraphicalOverlayVisible As Boolean

public bool IsGraphicalOverlayVisible { get; set; }

public: __property bool get_IsGraphicalOverlayVisible();
public: __property void set_IsGraphicalOverlayVisible(
   bool value
);

public:
property bool IsGraphicalOverlayVisible {
   bool get();
   void set(bool value);
}

True - visual tool must show static graphic objects in image viewer; false - visual tool must NOT show static graphic objects in image viewer.
Default value is true.