ImageGearJava Project > com.accusoft.imagegear.formats.iptc Package > ImGearIPTCMetadata Class : getReferenceNumber Method |
Method returnsthe tag value if the tag is present in the metadata tree, or null otherwise.
This method accesses the Reference Number DataSet (2:50). The DataSet identifies the Envelope Number of a prior envelope to which the current object refers.
Repeatable (array items represent repeated values), eight bytes, consisting of numeric characters.
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See the IPTC - NAA Information Interchange Model ver. 4.1 specification for tag usage details.