getExtendedMetadata()

Arguments:

command

A pointer to an ExtendedMetadataCommand object that specifies the media node being read and which of its fields are being read. The extended metadata values are written to this object.

Description:

Get extended metadata associated with a media node. Here, extended metadata refers to nonstandard metadata values, such as the URL of a media node, that aren't returned by getMetadata(). The ExtendedMetadataCommand object referenced in command contains the IDs of the node to read and of the media source where the node is located as well as the fields to read.

The extended metadata values extracted from the media node are stored in this same object. When your client receives the complete signal, it can call the result() function on this object to retrieve those values.