Emgu CV Library Documentation
cvSetImageROI Method (image, rect)
NamespacesEmgu.CVCvInvokecvSetImageROI(IntPtr, Rectangle)

www.emgu.com/wiki
Sets the image ROI to a given rectangle. If ROI is NULL and the value of the parameter rect is not equal to the whole image, ROI is allocated.
Declaration Syntax
C#Visual BasicVisual C++
public static void cvSetImageROI(
	IntPtr image,
	Rectangle rect
)
Public Shared Sub cvSetImageROI ( _
	image As IntPtr, _
	rect As Rectangle _
)
public:
static void cvSetImageROI(
	IntPtr image, 
	Rectangle rect
)
Parameters
image (IntPtr)
Image header.
rect (Rectangle)
ROI rectangle.

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.5.0.0 (1.5.0.0)