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MPEG_OPEN and friends not working [message #53663]

Thu, 26 April 2007 12:17

mark.t.douglas
Messages: 7
Registered: January 2005

Junior Member

Hi guys,

I have a mystery involving MPEG_OPEN and object graphics. Several
mysteries in fact!

Now the actual "render this" code works OK and I don't get any
peculiar licence errors, so I am completely at a loss. In my code the
line

mpegid = mpeg_open=(dimensions),

where dimensions is a 2-element vector, executes silently (well,
"compiled DLM mpeg") but doesn't actually do anything - no idl.mpg
file is created, and forcing a filename via the filename keyword
causes similar silence. Putting things into the mpeg via

mpeg_put,mpegid,window=oDraw,frame=iframe

where oDraw is an OBJREF = <ObjHeapVar13(IDLGRWINDOW)>, doesn't
work - no error is spawned yet there is no file created. mpeg_close
"works" in the same way.

Any clues?

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MPEG_OPEN and friends not working

By: mark.t.douglas on Thu, 26 April 2007 12:17

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