[DVIPDFMx] the simpleset OCG demo with dvipdfmx possible ?

[luoyi]

I'm trying to create probably the simplest ocg demo files with
dvipdfmx now. and after some time expreiment, still can't get the
correct result. anybody can help?

my simple file is:

\special{pdf: obj @ocg1 << /Type /OCG /Name (ringa) >> }
\special{pdf: obj @ocggroup [@ocg1] }
\special{pdf: obj @ocgcon <</BaseState (On)>> }
\special{pdf: put @catalog <</OCProperties <</OCGs [@ocggroup] /D @ocgcon>> >>}


\special{pdf: obj @ocmap <</oc1 @ocg1>>}
\special{pdf: put @resources <</Properties @ocmap >>}
abc
\special{pdf:literal /OC /oc1 BDC}
def
\special{pdf:literal EMC}
\bye