Re: Com Interop QueryInterface

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From: Mattias Sjögren <mattias.dont.want.spam@xxxxxxxx>
Date: Wed, 14 Sep 2005 17:47:40 +0200

>--IntPtr unknownIntPtr = Marshal.GetIUnknownForObject(cnt); //cnt is
>the com component

If cnt is a control derived from AxHost, you should use cnt.GetOcx()
to get to the real ActiveX object.

But why are you using GetIUnknownForObejct and explicit
QueryInterface? What are you going to do with the returned interface
poitner? Why not just cast to the interface?

Mattias

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Mattias Sjögren [MVP] mattias @ mvps.org
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Follow-Ups:
- Re: Com Interop QueryInterface
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References:
- Com Interop QueryInterface
  - From: va_acharya

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