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IWICMetadataBlockReader::GetReaderByIndex method

Retrieves an IWICMetadataReader for a specified top level metadata block.

Syntax


HRESULT GetReaderByIndex(
  [in]   UINT nIndex,
  [out]  IWICMetadataReader **ppIMetadataReader
);

Parameters

nIndex [in]

Type: UINT

The index of the desired top level metadata block to retrieve.

ppIMetadataReader [out]

Type: IWICMetadataReader**

When this method returns, contains a pointer to the IWICMetadataReader specified by nIndex.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

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

IWICMetadataBlockReader
Conceptual
Windows Imaging Component Overview
WIC Metadata Overview
Overview of Reading and Writing Image Metadata
Other Resources
How to Write a WIC-Enabled CODEC

 

 

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