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IWICMetadataReader interface

Exposes methods that provide access to underlining metadata content. This interface is implemented by independent software vendors (ISVs) to create new metadata readers.

Members

The IWICMetadataReader interface inherits from the IUnknown interface. IWICMetadataReader also has these types of members:

Methods

The IWICMetadataReader interface has these methods.

MethodDescription
GetCount

Gets the number of metadata items within the reader.

GetEnumerator

Gets an enumerator of all the metadata items.

GetMetadataFormat

Gets the metadata format associated with the reader.

GetMetadataHandlerInfo

Gets the metadata handler info associated with the reader.

GetValue

Gets the metadata item value.

GetValueByIndex

Gets the metadata item at the given index.

 

Remarks

A metadata reader can be used to access metadata blocks and items within a metadata block instead of using a query reader. To directly access the metadata reader, query a decoder or its frames for the IWICMetadataBlockReader interface to enumerate each metadata reader.

Requirements

Minimum supported client

Windows XP with SP2, Windows Vista [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Wincodecsdk.h

IDL

Wincodecsdk.idl

Library

Windowscodecs.lib

DLL

Windowscodecs.dll

See also

Conceptual
WIC Metadata Overview
Metadata Query Language Overview
Overview of Reading and Writing Image Metadata
Metadata Extensibility Overview

 

 

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