IWICBitmapDecoder::GetMetadataQueryReader method (wincodec.h)
Retrieves the metadata query reader from the decoder.
Syntax
HRESULT GetMetadataQueryReader(
[out] IWICMetadataQueryReader **ppIMetadataQueryReader
);
Parameters
[out] ppIMetadataQueryReader
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
| 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 | wincodec.h |
| Library | Windowscodecs.lib |
| DLL | Windowscodecs.dll |
See also
Conceptual
Metadata Query Language Overview