Does COM method return S_OK?

[techie]

I have an unmanaged VC++ application calls a COM object which will be
implemented in C#.

The VC++ call is:

BOOL res;
VERIFY( importFilt->Import(&res) == S_OK );

My C# method is:

public int Import()
{
// TODO: Add ValidatorImport .Import implementation
return iVal;
}

Will my VC++ code actually succeed? Does the C# Import() method return S_OK
by default? Or is the return value value iVal?

[Mattias Sjögren]

Re: Does COM method return S_OK?

[color=blue]
>Will my VC++ code actually succeed? Does the C# Import() method return S_OK
>by default?[/color]

Yes, as long as no exception is thrown.

[color=blue]
>Or is the return value value iVal?[/color]

No, that's returned through an extra [out,retval] parameter.



Mattias

--
Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
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