出处：http://www.cnblogs.com/NuclearBoy/articles/6092221.html
写在前面：
另百度文库里有一篇好的文章：https://wenku.baidu.com/view/d8be1b183c1ec5da51e27007.html
把Unity3D嵌入winform或者wpf程序，过去大部分使用UnityWebPlayer插件来实现，这个插件其实就是网页上播放unity页游的插件。
但是使用UnityWebPlayer嵌入桌面开发有各种问题，我认为最大的问题是效率问题（加载缓慢），毕竟是网页的加载方式，而且可以确认未来也不会得到任何优化。
由于WebGL的高速发展，unity公司认识到了webplayer十分鸡肋，毕竟WebGL不需要任何插件可以直接显示3d内容了，所以Unity3D在5.4.x版本以后明确表示
不再支持webplayer了，所以桌面上UnityWebPlayer插件能不用也就别用了吧。所以大家不要走弯路！！
主要内容：
将Unity嵌入桌面程序最好的方式是嵌入unity生成的exe程序，winform程序和unity之间通过socket进行通讯，我认为
这也是效率最高，效果最好和最好实现的方式。在Unity程序脚本中，嵌入socket内容，我推荐做成客户端（client），使用wpf程序做服务器端,这是一个谁是主体的问题。
这样wpf可以加载多个unity程序。
嵌入后的结果如下图所示（请无视具体内容）：
下面简单写了一个脚本，其中man是游戏中的一个gameobject对象。就是上图中穿蓝衣服的男人。在他身上挂着socket脚本如下：
using UnityEngine;using System.Collections;using System.Net.Sockets;using System;public class demoshows : MonoBehaviour { public GameObject man;const int portNo = 500;private TcpClient _client;byte[] data;string Error_Message;void Start () { try { this._client = new TcpClient();this._client.Connect("127.0.0.1", portNo); data = new byte[this._client.ReceiveBufferSize];//SendMessage(txtNick.Text);
SendMessage("Unity Demo Client is Ready!");this._client.GetStream().BeginRead(data, 0, System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage, null); }catch (Exception ex) { } }void Update () { transform.Rotate(new Vector3(0, 1, 0),0.1f); }public void rotation() { transform.Rotate(new Vector3(0, 10, 0));//targetRotation = Quaternion.Euler(45.0f, 45.0f, 45.0f);//// 直接设置旋转角度 //transform.rotation = targetRotation;////man.transform.rotation.SetAxisAngle(new Vector3(0, 1, 0), 30);; }public void translateX(float x){ transform.Translate(new Vector3(x,0,0));}public void translateY(float y){ transform.Translate(new Vector3(0, y, 0)); }public void translateZ(float z){ transform.Translate(new Vector3(0, 0, z)); }void OnGUI() { GUI.Label(new Rect(50, 50, 150,50 ), Error_Message); }public new void SendMessage(string message) { try { NetworkStream ns = this._client.GetStream();byte[] data = System.Text.Encoding.ASCII.GetBytes(message); ns.Write(data, 0, data.Length); ns.Flush(); }catch (Exception ex) { Error_Message = ex.Message;//MessageBox.Show(ex.ToString());
} }public void ReceiveMessage(IAsyncResult ar) { try { //清空errormessage Error_Message = "";int bytesRead; bytesRead = this._client.GetStream().EndRead(ar);if (bytesRead < 1) { return; }else { Debug.Log(System.Text.Encoding.ASCII.GetString(data, 0, bytesRead));string message = System.Text.Encoding.ASCII.GetString(data, 0, bytesRead);switch (message) { case "1": translateX(1);break;case "2": translateX(-1);break;case "3": translateY(1);break;case "4": translateY(-1);break;case "5": translateZ(1);break;case "6": translateZ(-1);break;default: Error_Message = "unknown command";break; } }this._client.GetStream().BeginRead(data, 0, System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage, null); }catch (Exception ex) { Error_Message = ex.Message; } }void OnDestroy() { this._client.Close(); }}
脚本很简单，就是通过向unity程序发送消息（1~6）实现模型的平移。
服务器端，在wpf程序中简单建立一个socket类，ip和端口要和unity对应，在程序启动时先建立服务器端。
using System.Net.Sockets;using System.Net;using System.Threading;using System.Diagnostics;using System.Text;using System;namespace Demo_Song{ class TcpServer { //私有成员
private static byte[] result = new byte[1024];private int myProt = 500; //端口 static Socket serverSocket;static Socket clientSocket; Thread myThread;static Thread receiveThread;//属性public int port { get; set; }//方法internal void StartServer() { //服务器IP地址 IPAddress ip = IPAddress.Parse("127.0.0.1"); serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); serverSocket.Bind(new IPEndPoint(ip, myProt)); //绑定IP地址：端口 serverSocket.Listen(10); //设定最多10个排队连接请求 Debug.WriteLine("启动监听{0}成功", serverSocket.LocalEndPoint.ToString());//通过Clientsoket发送数据 myThread = new Thread(ListenClientConnect); myThread.Start(); }internal void QuitServer() { serverSocket.Close(); clientSocket.Close(); myThread.Abort(); receiveThread.Abort(); }internal void SendMessage(string msg) { clientSocket.Send(Encoding.ASCII.GetBytes(msg)); }/// <summary> /// 监听客户端连接 /// </summary> private static void ListenClientConnect() { while (true) { try { clientSocket = serverSocket.Accept(); clientSocket.Send(Encoding.ASCII.GetBytes("Server Say Hello")); receiveThread = new Thread(ReceiveMessage); receiveThread.Start(clientSocket); }catch (Exception) { } } }/// <summary> /// 接收消息 /// </summary> /// <param name="clientSocket"></param> private static void ReceiveMessage(object clientSocket) { Socket myClientSocket = (Socket)clientSocket;while (true) { try { //通过clientSocket接收数据 int receiveNumber = myClientSocket.Receive(result); Debug.WriteLine("接收客户端{0}消息{1}", myClientSocket.RemoteEndPoint.ToString(), Encoding.ASCII.GetString(result, 0, receiveNumber)); }catch (Exception ex) { try { Debug.WriteLine(ex.Message); myClientSocket.Shutdown(SocketShutdown.Both); myClientSocket.Close();break; }catch (Exception) { } } } } }}
使用socket一定要注意使用线程，并且退出时及时结束，我这里实现的也不是很好，谁有更好的方法可以告诉我。
下面大概就是server的启动和释放，效果还好，至少不卡死....
TcpServer WpfServer;
int size_state = 0;public MainWindow() { InitializeComponent();this.Closed += MainWindow_Closed;this.Activated += MainWindow_Activated;this.Deactivated += MainWindow_Deactivated; WpfServer = new TcpServer(); WpfServer.StartServer(); }void MainWindow_Closed(object sender, EventArgs e) { unityhost.Form1_FormClosed(); WpfServer.QuitServer(); }
关于socket通讯的问题大概就这样，大家估计更关系如何嵌入的问题
如何嵌入？
首先在wpf程序中建立一个winform的自定义控件（不是wpf控件）usercontrol
在usercontrol内新建一个panel（或者其他带有句柄的控件），并设置dock属性为fill。
启动unity.exe，通过几个api将unity窗口附加在panel句柄上。
（说明：借鉴别人的程序）
需要把unity程序命名为child.exe，放在下面指定位置（Debug\UnityApp\Child.exe,或者release）
process.StartInfo.FileName =Application.StartupPath +@"\UnityApp\Child.exe";
详细代码如下：
using System;using System.Windows.Forms;using System.Runtime.InteropServices;using System.Diagnostics;using System.Threading;namespace Demo_Song{ public partial class UnityControl : UserControl { [DllImport("User32.dll")]static extern bool MoveWindow(IntPtr handle, int x, int y, int width, int height, bool redraw);internal delegate int WindowEnumProc(IntPtr hwnd, IntPtr lparam); [DllImport("user32.dll")]internal static extern bool EnumChildWindows(IntPtr hwnd, WindowEnumProc func, IntPtr lParam); [DllImport("user32.dll")]static extern int SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);private Process process;private IntPtr unityHWND = IntPtr.Zero;private const int WM_ACTIVATE = 0x0006;private readonly IntPtr WA_ACTIVE = new IntPtr(1);private readonly IntPtr WA_INACTIVE = new IntPtr(0);public UnityControl() { InitializeComponent();this.Load += UnityControl_Load; panel1.Resize+=panel1_Resize; }private void UnityControl_Load(object sender, EventArgs e) { try { process = new Process(); process.StartInfo.FileName =Application.StartupPath +@"\UnityApp\Child.exe"; process.StartInfo.Arguments = "-parentHWND " + panel1.Handle.ToInt32() + " " + Environment.CommandLine; process.StartInfo.UseShellExecute = true; process.StartInfo.CreateNoWindow = true; process.Start(); process.WaitForInputIdle();// Doesn't work for some reason ?!//unityHWND = process.MainWindowHandle;
EnumChildWindows(panel1.Handle, WindowEnum, IntPtr.Zero); unityHWNDLabel.Text = "Unity HWND: 0x" + unityHWND.ToString("X8"); }catch (Exception ex) { unityHWNDLabel.Text = ex.Message;//MessageBox.Show(ex.Message); } }internal void ActivateUnityWindow() { SendMessage(unityHWND, WM_ACTIVATE, WA_ACTIVE, IntPtr.Zero); }internal void DeactivateUnityWindow() { SendMessage(unityHWND, WM_ACTIVATE, WA_INACTIVE, IntPtr.Zero); }private int WindowEnum(IntPtr hwnd, IntPtr lparam) { unityHWND = hwnd; ActivateUnityWindow();return 0; }private void panel1_Resize(object sender, EventArgs e) { MoveWindow(unityHWND, 0, 0, panel1.Width, panel1.Height, true); ActivateUnityWindow(); }// Close Unity applicationinternal void Form1_FormClosed() { try { process.CloseMainWindow(); Thread.Sleep(1000);while (process.HasExited == false) process.Kill(); }catch (Exception) { } }internal void Form1_Activated() { ActivateUnityWindow(); }internal void Form1_Deactivate() { DeactivateUnityWindow(); } }}
最后附上源码，github重置密码死活连不上，现在就传压缩包到百度云把，vs版本较高（2012）以上可以打开，注意，低版本打不开工程。
博客地址迁移了，请到
http://www.songshizhao.com/blog/blogPage/78.html
下载。
貌似写得有点长了，能看到这里的人不多吧哈哈，希望有做类似需求的人少走弯路吧，碎觉去，over~。