[Greg McKaskle]

I think you must be commenting on the RIO or region of interest tools on the IMAQ display. They are for selecting an area on the image using points, lines, rectangles, and such, and using that information in the processing. They do not automatically know how to target anything in the image.

If you want to read the rectangle location out of the IMAQ display, you most likely need to read a property node. They are located in the Application Control palette, or you can right click on the display's terminal and choose Create Property>> and choose any property you like. There are a bunch of them.

Greg McKaksle