ZXingBlazor
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Add scanning frame, only read the QR code in the scanning frame
Add a scanning box in the middle of the scanning area, crop the QR code in the scanning box in the video source, and only parse the QR code in the scanning box
You can refer to this: https://github.com/zxing-js/library/issues/39#issuecomment -769339674
Because this requirement is relatively personalized, there are currently no plans to add it to the component. but if you have a sample, we wellcom for your PR.