使用 COM 互操作处理C++非托管代码中的 C# 事件

我有一个用C#编写的TcpSocketServer，我想在没有CLI的情况下在本机C++中使用它。该类在客户端连接/断开连接以及接收数据时引发事件。到目前为止，我让服务器工作并接受连接，但是我仍然无法发送/接收数据。

请注意，这是我需要使用的几个类之一，所以请不要建议我使用本机C++套接字。

(相关的(C# 代码如下：

[ComVisible(true)]
public delegate void TcpClientConnectedEventHandler(Socket s);
[ComVisible(true)]
public delegate void TcpClientDisconnectedEventHandler(EndPoint ep);
[ComVisible(true)]
public delegate void TcpDataReceivedEventHandler(TcpPacket p);
[ComVisible(true)]
[Guid("7cf49dcd-c11b-4e94-9f73-d5a24fe027c3")]
public interface ISocketTcpServer
{
    event TcpClientConnectedEventHandler ClientConnected;
    event TcpClientDisconnectedEventHandler ClientDisconnected;
    event TcpDataReceivedEventHandler DataReceived;
    [ComVisible(true)]
    int SendToAll(byte[] buffer);
}

现在，在C++我有以下(相关(代码：

// Function Prototypes
void onClientConnected();
void onClientDisconnected();
void onDataReceived(ITcpPacket *packet);
VARIANT_BOOL started(ISocketTcpServer *server);
long send(ISocketTcpServer *server, char *s);
int main(int argc, char* argv[])
{
    ISocketTcpServer *server = NULL;
    _TcpDataReceivedEventHandler *dataReceivedPtr = NULL;
    _TcpClientConnectedEventHandler *clientConnectedPtr = NULL;
    _TcpClientDisconnectedEventHandler *clientDisconnectedPtr = NULL;
    char sInput[1024];
    std::cout << "C# Sockets Interop example.'r'n";
    // Initialize COM.
    CoInitialize(NULL);
    // Create the interface pointers.
    HRESULT hr = CoCreateInstance(__uuidof(SocketTcpServer), NULL,
        CLSCTX_INPROC_SERVER, __uuidof(ISocketTcpServer), (void **)&server);
    if((hr != S_OK) || (server == NULL))
    {
        std::cout << "Create instance failed'r'n";
        CoUninitialize();
        return 0;
    }
    // Configure TCP Server
    server->put_Port(2000);
    dataReceivedPtr = (_TcpDataReceivedEventHandler *)&onDataReceived;
    clientConnectedPtr = (_TcpClientConnectedEventHandler *)&onClientConnected;
    clientDisconnectedPtr =
        (_TcpClientDisconnectedEventHandler *)&onClientDisconnected;
    /* HERE IS WHERE I SET UP THE EVENTS */
    server->add_ClientConnected(clientConnectedPtr);
    server->add_ClientDisconnected(clientDisconnectedPtr);
    server->add_DataReceived(dataReceivedPtr);
    // Start TCP Server
    std::cout << "Starting TCP Server on port 2000.'r'n";
    server->Start();
    while(!started(server)) Sleep(100);
    while(started(server))
    {
        std::cin >> sInput;
        send(server, sInput);
    }
    // Uninitialize COM.
    CoUninitialize();
    return 0;
}
long send(ISocketTcpServer *server, char *s)
{
    long result = 0;
    server->SendToAll((SAFEARRAY *) s, &result);
    return result;
}

所有其他函数都有其定义并且工作正常，所以我没有包含它们。

主要问题是：必须如何声明将处理事件的函数才能使其工作。我认为它们不起作用，因为它们与关联的委托不匹配，但我无法访问 .NET Framework 的套接字和端点类。

还有方法

SendToAll(byte[] buffer):int

映射到函数

SendToAll(SAFEARRAY *buffer, long *pRetVal):HRESULT

但这可能是一个演员表问题。

你能给我的任何帮助或提示都会很有用。

提前祯炯。

public delegate void TcpClientConnectedEventHandler(Socket s);
public delegate void TcpClientDisconnectedEventHandler(EndPoint ep);
public delegate void TcpDataReceivedEventHandler(TcpPacket p);
public interface ISocketTcpServerEvents
{
    void ClientConnected;
    void ClientDisconnected;
    void DataReceived;
}
[ComSourceInterfaces(typeof(ISocketTcpServerEvents))]
public class SocketTcpServer
{   
    public event TcpClientConnectedEventHandler ClientConnected;
    public event TcpClientDisconnectedEventHandler ClientDisconnected;
    public event TcpDataReceivedEventHandler DataReceived;
    int SendToAll(byte[] buffer);
}