IWICMetadataBlockReader::GetReaderByIndex method (wincodecsdk.h)
Retrieves an IWICMetadataReader for a specified top level metadata block.
Syntax
HRESULT GetReaderByIndex(
[in] UINT nIndex,
[out] IWICMetadataReader **ppIMetadataReader
);
Parameters
[in] nIndex
Type: UINT
The index of the desired top level metadata block to retrieve.
[out] ppIMetadataReader
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
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP with SP2, Windows Vista [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2008 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | wincodecsdk.h |
| Library | Windowscodecs.lib |
| DLL | Windowscodecs.dll |
See also
Conceptual
How to Write a WIC-Enabled CODEC
Other Resources