[Zope] VideoCapture module fails under Zope on Win32

Dylan Reinhardt zope@dylanreinhardt.com
Sun, 02 Mar 2003 17:36:03 -0800

At 01:00 AM 3/1/2003, Tim wrote:
>Traceback (innermost last):
>   Module ZPublisher.Publish, line 98, in publish
>   Module ZPublisher.mapply, line 88, in mapply
>   Module ZPublisher.Publish, line 39, in call_object
>   Module Products.ZVideoCapture.ZVideoCapture, line 32, in test
>   Module Products.ZVideoCapture.vidtest, line 4, in getdev
>   Module VideoCapture, line 49, in __init__
>Error: Creation of the filter graph failed.

Ugh.  Line 49 calls a method in a pyd file.  Tough to know why the filter 
graph creation failed without seeing it.

It may well be the case that the VideoCapture maintainers would have a 
pretty good idea of what might cause this error.  That could push us in the 
right direction.

It might also be possible to get a better traceback.  Put line 49 inside a 
try...except and kick back your own exception.  Check out this recipe for 
some hints how you might get some richer information on what's gone wrong:

I haven't tried any of that in a Zope object, though it works like a charm 
in other Python stuff.

That's about what I can think of at the moment.