CF to COM interaction

  • Thread starter Thread starter Guest
  • Start date Start date
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Guest

I've created a lightweight COM wrapper in eC++ that allows me to call out
from managed code to a COM object. However, the COM object in question
raises events at certain times, which I need to trap and access. I've
noticed that the Compact Framework offers the GuidAttribute / DispIDAttribute
/ COMVisibleAttribute features, while omitting most others that alloe managed
code to interact with COM. Seeing that that these features are there for a
reason, is there a way for me to expose managed code to a COM object using
the aforementioned COM interface attributes?

FYI - please don't refer me to v2.0 of the CF. I develop production systems
with non-beta products only (not to say that what I've engineered is oriented
to eventually use CF 2.0).

Thanks,

Jeff Potts.
 
This isn't possible with V1.0. You'll have to implement your interface to
handle the events in native code, and then have this signal your managed
code e.g. through a windows message, named event or similar.

Peter
 
I was afriad of that, but it never hurts to ask.

Next stupid question: if the DispIDAttibute, GuidAttibute, and
ComVisibleAttribute facilities are essentially useless (seeing that they
focused towards COM interaction), why were they included in CF v1.0 in the
first place?
 
Thanks for the help. It's not quite what I'm looking for, but I appreciate
the effort.

Once again, thanks.

Jeff Potts.

Sergey Bogdanov said:
I have written an example which integrates IE into CF1.0 application.
The example also demonstrates how to trap events from COM. I suppose it
could be useful for you:
http://www.sergeybogdanov.com/Samples/WebBrowserCE.zip

--
Sergey Bogdanov [.NET CF MVP, MCSD]
http://www.sergeybogdanov.com


Jeff said:
I've created a lightweight COM wrapper in eC++ that allows me to call out
from managed code to a COM object. However, the COM object in question
raises events at certain times, which I need to trap and access. I've
noticed that the Compact Framework offers the GuidAttribute / DispIDAttribute
/ COMVisibleAttribute features, while omitting most others that alloe managed
code to interact with COM. Seeing that that these features are there for a
reason, is there a way for me to expose managed code to a COM object using
the aforementioned COM interface attributes?

FYI - please don't refer me to v2.0 of the CF. I develop production systems
with non-beta products only (not to say that what I've engineered is oriented
to eventually use CF 2.0).

Thanks,

Jeff Potts.
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