This setting is used to skip patch code scanning on a page if a bar code has been detected on that page. This can be useful to avoid false positive matches for patch code detection when you know that a patch code should never appear on the same page as a bar code.
By default, the IgnorePatchWithBarCode setting is set to 0(or is not present), meaning that the setting is disabled. To enable the setting, set it to 1(IgnorePatchWithBarCode="1").