How to add IDL to assembly?

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

alexbalaev@yahoo.com - 24 Oct 2006 17:02 GMT

Hello,
First of I am very new to .NET 2.0... sorry if the question is very
basic.
Here is the deal.
We used to develop in COM (VS 6.0). We have a bunch of objects that use
the same interface. The interface is in an IDL file, shared between the
projects.
Now we're switching to .NET 2.0 (VS 8.0) but we want to use the same
interface, the same GUID and so on so that newly created .NET DLL (in
C#) can be loaded by our *old* process and get used through the same
interface.
The IDL is really simple and the .NET is a fresh project:
--------------------------------------------------------------------------------------------
    [
     object,
        uuid(),
        dual,
        helpstring("IMyInterface Interface"),
        pointer_default(unique)
    ]

    __interface IMyInterface: IDispatch
    {
        [id(1), helpstring("method")]
        HRESULT Method([in]BSTR xmlInput, [out]BSTR* xmlOutput);
    };

--------------------------------------------------------------------------------------------
I would appreciate any help on how it could be done.
TIA, Alex.

Reply to this Message

Mattias Sjögren - 29 Oct 2006 21:16 GMT

Alex,

>I would appreciate any help on how it could be done.

You can declare and use the same interface in C#. It would look
something like this

[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
[Guid(...)]
interface IMyInterface
{
[DispId(1)]
void Method(string xmlInput, out string xmlOutput);
}

Mattias

Signature

Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Reply to this Message

alexbalaev@yahoo.com - 30 Oct 2006 17:38 GMT

Mattias,
Thanks!
Maybe you could help me on another one :)
I assume that this attiribute will work as regular (COM) registration,
correct?
If yes I want to add this newly created .NET dll into a particular
category.
For instance in .NET 1.1 i could do

[ module(dll, uuid = "{FBA1520A-7255-4D93-8293-979A89D3B471}",
        name = "MyObject",
        helpstring = "MyObject 1.0 Type Library",
        resource_name = "IDR_MYOBJECT") ]
class CMyClass
{

}

How to express it in .NET 2.0???
Thanks in advance, Alex.

> Alex,
>
[quoted text clipped - 18 lines]
> http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
> Please reply only to the newsgroup.

Reply to this Message

Mattias Sjögren - 05 Nov 2006 15:01 GMT

>I assume that this attiribute will work as regular (COM) registration,
>correct?

In what way? The attributes themselvs don't do much. The registration
of assemblies is handled by RegAsm.exe.

>If yes I want to add this newly created .NET dll into a particular
>category.

If you need to do custom registration, check out the
ComRegisterFunctionAttribute.

Mattias

Signature

Mattias Sjögren [C# MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/ | http://www.dotnetinterop.com
Please reply only to the newsgroup.

Reply to this Message

Rate this thread:

How to add IDL to assembly?

Free Magazines