Synchronously loads the document from @stream. See ev_document_load() for more information.
a #GInputStream
flags from #EvDocumentLoadFlags
a #GCancellable, or %NULL
%TRUE if loading succeeded, or %FALSE on error with @error filled in
GException on failure.
3.6
See Implementation
Synchronously loads the document from @stream. See ev_document_load() for more information.