File Content Extraction 26.1
Filter SDK C++ Programming Guide

# at

Returns a reference to the MetadataElement whose standard key matches the `standard_key` argument. Throws `std::out_of_range` if there is no matching element in the list.

## Syntax

    const MetadataElement& at(MetadataKey standard_key) const;

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Version 26.1 | Last updated January 2026

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Product: File Content Extraction 26.1

Topic Title: at