Emgu CV Library Documentation
_size Field
NamespacesEmgu.CVRectangle<(Of <(T>)>)_size

www.emgu.com/wiki
The size: width & height
Declaration Syntax
C#Visual BasicVisual C++
protected Point2D<T> _size
Protected _size As Point2D(Of T)
protected:
Point2D<T>^ _size

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.3.0.0 (1.3.0.0)