Rect.fromNative constructor
      
      Rect.fromNative(
    
    
- CvRect p
Implementation
factory Rect.fromNative(cvg.CvRect p) => Rect(p.x, p.y, p.width, p.height);factory Rect.fromNative(cvg.CvRect p) => Rect(p.x, p.y, p.width, p.height);