THPDFStructuredExportStatus Type

THPDFStructuredExportStatus =
  (sesNotRun, sesSucceeded, sesInvalidOptions,
   sesExtractionFailed, sesBudgetExceeded, sesCancelled,
   sesWriteFailed);

每個未成功的狀態都帶有診斷資訊，且不會公布已完成的輸出位元組數