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IWMHeaderInfo2 interface

The IWMHeaderInfo2 interface exposes information about the codecs used to create the content in a file.

The IWMHeaderInfo2 interface is implemented by the metadata editor object, the writer object, the reader object, and the synchronous reader object. To obtain a pointer to an instance, call the QueryInterface method of any other interface in the desired object.


The IWMHeaderInfo2 interface inherits from IWMHeaderInfo. IWMHeaderInfo2 also has these types of members:


The IWMHeaderInfo2 interface has these methods.


Retrieves information about a codec.


Retrieves the number of codecs for which information is available.


For information about which interfaces can be obtained by using the QueryInterface method of this interface, see the topic for the object on which this interface is implemented.


For information about using the writer for metadata editing, see To Edit Metadata with the Writer.

See also

IWMHeaderInfo Interface
IWMHeaderInfo3 Interface
Metadata Editor Object
Reader Object
Synchronous Reader Object
Writer Object