'Declaration

<DescriptionAttribute("The text and line-art regions on a source image.")>
Public Property MaskRegions As System.Drawing.Rectangle

[Description("The text and line-art regions on a source image.")]
public System.Drawing.Rectangle MaskRegions { get; set; }

[Description("The text and line-art regions on a source image.")]
public: __property System.Drawing.Rectangle* get_MaskRegions();
public: __property void set_MaskRegions(
   System.Drawing.Rectangle*[]* value
);

[Description("The text and line-art regions on a source image.")]
public:
property System.Drawing.Rectangle^ MaskRegions {
   System.Drawing.Rectangle^ get();
   void set(array<System.Drawing.Rectangle^>^ value);
}

null - the whole image will be binarized, using MaskBinarization command, for getting the mask layer; not null - specified image regions will be binarized, using MaskBinarization, for getting the mask layer.
Default value is null.