Unfortunately got the same error ('Invalid class string') with
'pywintypes.IID("{...
You mention not supporting IDispatch but this interface inherits
IDispatch. Here is a snippet from it's IDL:
[
odl,
uuid(8D2AD79B-1ADD-4181-BAD4-FF0672A9B6E3),
version(1.0),
dual,
nonextensible,
oleautomation
]
interface IViewDataView : IDispatch {
[id(0)] HRESULT GetDataSet([out,retval] long*);
...
Isn't that the same thing?
Jose
On Sun, Apr 27, 2008 at 11:53 AM, Mark Hammond
<[EMAIL PROTECTED]> wrote:
> > Hi Mark,
> >
> > Thanks for the answer, I tried using the IViewDataView's uiid like
> > this (probably in a naive way):
> >
> > y = view.QueryInterface("{8D2AD79B-1ADD-4181-BAD4-FF0672A9B6E3}")
> >
> > But that produces the error on that line.
> >
> > com_error: (-2147221005, 'Invalid class string', None, None)
>
> Hrm - try passing 'pywintypes.IID("{8D2AD79B-1ADD-4181-BAD4-FF0672A9B6E3}")'
> as the IID.
>
> > I read that I can do the same thing with win32com (without using
> > comtypes) but for that I would need to somehow add my custom interface
> > to it. I also read that exist tools to automate this process but so
> > far I could not find them. Where should I start?
>
> Yeah - if the interface doesn't support IDispatch, your best bet is indeed
> comtypes. The code as it stands, once you sort out the simple issues, is
> likely to end up with an E_NOINTERFACE exception :(
>
> Mark
>
>
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