Table of contents
Swift
Objective-C

This documentation is deprecated. It applies only to legacy version 9.x of Barcode Reader and must not be used for new development.

Please refer to the latest documentation and Migration Guide, which supersede this content.

When to use onFrameRead and when to use onUniqueRead?

« Back to FAQ index

onFrameRead is triggered with each captured video frame, whether there are barcode results or not. If a barcode is within the frame, then it will show in the results of onFrameRead.

onUniqueRead is triggered once a new barcode is found. This event does not repeat for the same barcode until the duplicateForgetTime passes.

This page is compatible for:

Is this page helpful?

YesYes NoNo