alias void function(int id) ConnectedCallBack;
alias void function(int id, void* data, int len) ReadCallBack;

export extern (C) void AddListenersss( ConnectedCallBack connectedCallBack=null, ReadCallBack readCallBack=null )
{
	int id = 0;
	int len = 0;
	version(Windows)
	{
		while(true)
		{
			Thread.sleep( dur!("seconds")( 2 ) );
			id++;
			connectedCallBack(id);

			len+=id;
			Thread.sleep( dur!("seconds")( 1 ) );
			readCallBack(id, null, len);
		}
	}
	else
	{
		//server = new epoll();
	}
}

然后用导出的dll我分别在 D、C、C#中调用
除了D之外
其它返回都是错误的值，例如C#：

[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void OnConnectedCallBack(int id);

[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void OnReceivedCallBack(int sock, IntPtr pData, int len);

[DllImport("ShuNetTcp.dll",EntryPoint = "AddListenersss", CharSet = CharSet.Ansi, CallingConvention = CallingConvention.Cdecl)]
public static extern void AddListenersss(OnConnectedCallBack connectedCallback, OnReceivedCallBack readCallBack );

调用：
m_onConnected = new NetServer.OnConnectedCallBack(OnConnected);
m_onReceived = new NetServer.OnReceivedCallBack(OnRead);			
NetServer.AddListenersss( m_onConnected, m_onReceived );

回调函数：
private void OnConnected(int id)
{
	Console.WriteLine ("连接完成 Id=>" + id.ToString());	
}		
		
private void OnRead(int id, IntPtr pdata, int len)
{
}

接收到的 id 和 len 都是错误的！

大师们帮下忙！ 那里错了？ 我整了一周了！

我这里还没装好D的环境没法编译代码 ...你编译一个简单的DLL我帮你调试下看看

兄弟 QQ、邮箱？

extern (C) {
     alias void function(int id) ConnectedCallBack;  
     alias void function(int id, void* data, int len) ReadCallBack;  
}

lovovv$qq.com

这个用法估计是对的

酷！！！ 正确了，偷偷问下你在官方论坛上叫 Trass3r 么？另外怎么这两个也需要导出？

不是导出吧? 这里是用来指定调用约定