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IWICBitmapDecoder::GetMetadataQueryReader method

Retrieves the metadata query reader from the decoder.

Syntax


HRESULT GetMetadataQueryReader(
  [out]  IWICMetadataQueryReader **ppIMetadataQueryReader
);

Parameters

ppIMetadataQueryReader [out]

Type: IWICMetadataQueryReader**

Receives a pointer to the decoder's IWICMetadataQueryReader.

Return value

Type: HRESULT

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

Remarks

If an image format does not support container-level metadata, this will return WINCODEC_ERR_UNSUPPORTEDOPERATION. The only Windows provided image format that supports container-level metadata is GIF. Instead, use IWICBitmapFrameDecode::GetMetadataQueryReader.

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

Wincodec.h

IDL

Wincodec.idl

Library

Windowscodecs.lib

DLL

Windowscodecs.dll

See also

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

 

 

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