COM对象c ++ / cli

Question

I am trying to use the the maged c++/cli assembly as an object within html.

<object classid="http://127.0.0.1/xxx/yyy_CLI.dll#FooClass" id="dummy" ></object>

The class seems like that

#pragma once

using namespace System;
using namespace System::Runtime::InteropServices;

[Guid("D81FDD51-ABB0-480b-A5F9-0DE209C8456E")]
[ComVisibleAttribute(true)]
public interface class IFooClass
{
    virtual void Initialize() = 0;
};

[Guid("D0556663-B16C-403f-B6E1-C5154BE54EF9")]
[ComVisibleAttribute(true)]
public ref class FooClass: public IFooClass
{
public:
    FooClass(void);
    virtual ~FooClass(void);

    virtual void Initialize();

};

However when javascript is trying to call the Initialize method it says "...Error: Object doesn't support this property or method..."

What am I doing wrong?

Answer 1

I might be way off here, it's been ages since I touched COM, but here it goes:

I think you need to set the Interface type via the InterfaceType attribute. something like:

[InterfaceType(ComInterfaceType::InterfaceIsDual)]
[Guid("D81FDD51-ABB0-480b-A5F9-0DE209C8456E")]
[ComVisibleAttribute(true)]
public interface class IFooClass
{
...
}

Also, you need to export the managed classes to COM with the Tlbexp.exe (Type Library Exporter).