win32com and "collection"

[Jess Austin (AT)]

"Mark Hammond" <mhammond at skippinet.com.au> wrote :
> >>>>from win32com.server import util
> >>>>from win32com import client
> >>>>col = util.NewCollection([])
> >>>>obj = client.Dispatch('FooServer.BarObject')
> >>>>obj.ProcessData(col, 4)
>
> You will need to "wrap" col - use win32com.server.util.wrap

Thanks for responding Mark.  Here is what I get when I try this:

>>> from win32com.server import util
>>> wrap = util.wrap(util.NewCollection([]))
Traceback (most recent call last):
  File "<interactive input>", line 1, in ?
  File "C:\PROGRA~1\PYTHON22\lib\site-packages\win32com\server\util.py",
line 20, in wrap
    ob = usePolicy(ob)
  File "C:\PROGRA~1\PYTHON22\lib\site-packages\win32com\server\policy.py",
line 189, in __init__
    self._wrap_(object)
  File "C:\PROGRA~1\PYTHON22\lib\site-packages\win32com\server\policy.py",
line 465, in _wrap_
    raise error, "Object does not support DesignatedWrapPolicy, as it does
not have either _public_methods_ or _typelib_guid_ attributes."
win32com.server.policy error: Object does not support DesignatedWrapPolicy,
as it does not have either _public_methods_ or _typelib_guid_ attributes.

When I had originally looked at win32com.server.util, I had noticed that
NewCollection() basically just returns a wrapped Collection.  It makes sense
that we wouldn't be able to wrap something twice.  So unless I'm missing
something, we can expect either util.NewCollection([]) or
util.wrap(util.Collection([])) to give us something we can pass to COM.
Reference my first message for the error that was produced when I attempted
to do that.  Does that point to a bug in pythoncom.WrapObject() or maybe
PyIDispatch.InvokeTypes()?

thanks,
Jess