IWICComponentFactory::CreateQueryReaderFromBlockReader method (wincodecsdk.h)

• 12/05/2018
• 2 minutes to read

Creates a IWICMetadataQueryReader from the given IWICMetadataBlockReader.

Syntax

HRESULT CreateQueryReaderFromBlockReader(
  IWICMetadataBlockReader *pIBlockReader,
  IWICMetadataQueryReader **ppIQueryReader
);

Parameters

pIBlockReader

Type: IWICMetadataBlockReader*

Pointer to the block reader to base the query reader on.

ppIQueryReader

Type: IWICMetadataQueryReader**

A pointer that receives a pointer to the new metadata query reader.

Return value

Type: HRESULT

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

Requirements