National Instruments IMAQTM User Manual page 85

As with calibration information, overlay information is removed from an image
Note
when the image size or orientation changes.
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to . With
True CWMachineVision.FindPattern
search area and the result.
Use
CWIMAQOverlay.Clear
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
Chapter 5
to clear any previous overlay information
5-33 IMAQ Vision for Visual Basic User Manual
Performing Machine Vision Tasks
, you can overlay the
.