The custom window title is stored where? and how?

What is the complete title of the reader window when one of these are opened? Does it still says "Acrobat Reader -[ " at the beginning? Could this work?

   *== Printing has begun when PDF name appears in title of Reader window
   DO WHILE .t.
      getwindowtext(lnReaderHwnd, @lcWindowTitle, lnWindowTitleLen)
      IF "- [" $ lcWindowTitle
         EXIT
      ENDIF
   ENDDO

   *== Printing has finished when PDF name no longer in title
   DO WHILE .t.
      lcWindowTitle = SPACE(50)
      getwindowtext(lnReaderHwnd, @lcWindowTitle, lnWindowTitleLen)
      IF ! "- [" $ lcWindowTitle
         EXIT
      ENDIF
   ENDDO