'Declaration

Public Property Zoom As Single

public float Zoom { get; set; }

public: __property float get_Zoom();
public: __property void set_Zoom(
   float value
);

public:
property float Zoom {
   float get();
   void set(float value);
}

0 - entire image will be shown in the image map (best fit mode);
N - scale factor of the image map relative to the current scale factor in the image viewer (for example 1/40).

Default value is 0.