如何在C++中创建一个公开返回对象的函数的COM？

// MyInterface.h
#ifndef MYINTERFACE_H
#define MYINTERFACE_H

interface MyInterface
{
    virtual void PublicFunction() = 0;
};

#endif // MYINTERFACE_H

// MyObject.h
#ifndef MYOBJECT_H
#define MYOBJECT_H

#include "MyInterface.h"

class MyObject : public MyInterface
{
public:
    void PublicFunction() override;
};

#endif // MYOBJECT_H

// MyObject.cpp
#include "MyObject.h"
#include <iostream>

void MyObject::PublicFunction()
{
    // 公开返回对象的函数实现
    std::cout << "Public function returning object" << std::endl;
}

// MyCOMObject.h
#ifndef MYCOMOBJECT_H
#define MYCOMOBJECT_H

#include "MyObject.h"
#include <atlbase.h>

class MyCOMObject : public CComObject<MyObject>
{
public:
    DECLARE_REGISTRY_RESOURCEID(IDR_MYCOMOBJECT)

    BEGIN_COM_MAP(MyCOMObject)
        COM_INTERFACE_ENTRY(MyInterface)
    END_COM_MAP()
};

#endif // MYCOMOBJECT_H

// MyCOMObject.cpp
#include "MyCOMObject.h"

BEGIN_OBJECT_MAP(ObjectMap)
    OBJECT_ENTRY(CLSID_MyCOMObject, MyCOMObject)
END_OBJECT_MAP()

regsvr32 /s MyCOMObject.dll

// Client.cpp
#include <iostream>
#import "MyCOMObject.dll"

int main()
{
    CoInitialize(nullptr);

    MyInterfacePtr pMyInterface;
    HRESULT hr = pMyInterface.CreateInstance(__uuidof(MyCOMObject));

    if (SUCCEEDED(hr))
    {
        pMyInterface->PublicFunction();
    }
    else
    {
        std::cout << "Failed to create COM object" << std::endl;
    }

    CoUninitialize();

    return 0;
}