# Part II. Reference

This section provides the detailed API of the Tracker Extract library.

Table of Contents

Core API
  How to use libtracker-extract — The essentials by example
  TrackerExtractInfo — struct used to pass information to and from a Tracker extract module
  Data utilities — Functions for coalescing, merging, date handling and normalizing
Common Embedded Support API
  XMP — Extensible Metadata Platform (XMP)
  IPTC — Information Interchange Model (IIM) / International Press Telecommunications Council (IPTC)
  Exif — Exchangeable Image File Format (EXIF)
Annotation Glossary

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