Convert a raw pointer to IDispatch

[Roger That]

Hi,

I am trying to use the function "CreateStreamOnHGlobal" from python code 
(I need to pass an IStream object to MSXML, like I do in C++ code).

I was able to retrieve a pointer on the IStream object in this way:

from ctypes import *

stream = c_int()
windll.ole32.CreateStreamOnHGlobal(c_long(0), c_long(1), byref(stream))
print "%x"%stream.value

The problem is that I would like to attach this pointer to a python 
IDispatch object (in Python only, not using a C++ DLL to do the stuff). 
Do you know a way to do it ?

Thanks for your attention.