TXFAInstancePresentation.Create

Unit: HPDFXFAPresentation

constructor Create(const XDP: TBytes; PageWidth, PageHeight: Double); overload;
constructor Create(const XDP: TBytes; PageWidth, PageHeight: Double;
  const Options: TXFAPresentationOptions); overload;

Loads a complete XDP packet document, assigns and validates opaque identities, and creates a bounded runtime; dimensions use positive PDF points and options default to TXFAPresentationOptions.Default

See Dynamic XFA Instance Presentation for binding and selector rules, supported event syntax, budget defaults, transactional publication, persistence, painting, and compatibility boundaries