restricted system commands enabled.
(./pdf-refobj-show.tex
> \box0=
\hbox(0.0+0.0)x0.0, direction TLT
.\pdfrefobj << /A 1 >>
.\pdfrefobj attr /B 2 stream x y z
.\pdfrefobj stream q Q
.\pdfrefobj
.\pdfrefobj [1 2]
.\pdfrefobj file refobj.tex
.\pdfrefobj stream file refobj.tex
.\pdfrefobj attr /C 3 stream abc
! OK.
l.18 \showbox0
> \box0=
\hbox(0.0+0.0)x0.0, direction TLT
.\pdfrefobj (late)
! OK.
l.21 \showbox0
)
(see the transcript file for additional information)
warning (pdf backend): no pages of output.
Transcript written on pdf-refobj-show.log.