Kirk Fertitta wrote:
I am trying to use a COM component that does not support the IDispatch
interface. It has only early-bound IUnknown derived interfaces in it.
The folks at ActiveState directed me to this list for some assistance.
It seems from some of the documentation I’ve come across that Python can
make early-bound function calls, but it seems that all of the creation
mechanisms perform a QueryInterface for IDispatch (which, of course,
will always fail for our COM components). Does anyone have any idea on
if/how Python can be used with non-IDispatch COM components? Any advice
is very much appreciated.
The short answer is: you want comtypes.
I recommend getting the svn trunk
http://starship.python.net/crew/theller/comtypes/
The longer answer is that there *is* support for non-IDispatch
interfaces in pywin32, but it's more-or-less the raison d'etre for
comtypes (whose principal architect Thomas Heller is still away
on holiday, I think), while it's one thing among many in pywin32
which is notoriously underdocumented and more complex in any
case.
TJG
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