National Instruments IMAQTM User Manual

Page of 121
Chapter 5
Performing Machine Vision Tasks
© National Instruments Corporation
5-33
to 
True
. With 
CWMachineVision.FindPattern
, you can overlay the 
search area and the result.
Use 
CWIMAQOverlay.Clear
 to clear any previous overlay information 
from the image. Use 
CWIMAQVision.WriteImageAndVisionInfo
 
to save an image with its overlay information to a file. You can 
read the information from the file into an image using the 
CWIMAQVision.ReadImageAndVisionInfo
Note
As with calibration information, overlay information is removed from an image 
when the image size or orientation changes.