open
Opens a document and returns a KeyView Document object that you can use to access information from the document - for example its format information, text, metadata, and subfiles.
A Document
must be created and used on the same thread that created the parent session.
A Document
object maintains a reference to the input object, so cannot be used after the input object has been destroyed.
Syntax
template <typename Input_Type> Document open(Input_Type& input)
Example
See Open a Document.