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IWICBitmapDecoder::GetMetadataQueryReader method

Retrieves the metadata query reader from the decoder.

Syntax

C++


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