int hw_pipedocument(int connection, int objectID);
Returns the Hyperwave document with object ID objectID. If the document has anchors which can be inserted, they will have been inserted already. The document will be transfered via a special data connection which does not block the control connection.
See also hw_GetText() for more on link insertion, hw_FreeDocument(), hw_DocumentSize(), hw_DocumentBodyTag(), hw_OutputDocument().