Question Problems running unity in a WPF project

hi. I'm a beginner just starting to learn coding.

I'm working on adding a Unity 3D Earth to the screen in a WPF window right now.

When you start a WPF project, like this image



window close button not showing

← this

and coudln't resize and move window.




I want to display the earth screen on the 0th grid





My code is from the forum.

Code (CSharp):

1.     public partial class MainWindow : ThemedWindow
2.     {
3.  
4.         [DllImport("User32.dll")]
5.         static extern bool MoveWindow(IntPtr handle, int x, int y, int width, int height, bool redraw);
6.  
7.         internal delegate int WindowEnumProc(IntPtr hwnd, IntPtr lparam);
8.         [DllImport("User32.dll")]
9.         internal static extern bool EnumChildWindows(IntPtr hwnd, WindowEnumProc func, IntPtr lParam);
10.  
11.         [DllImport("User32.dll")]
12.         static extern int SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
13.  
14.         private Process _process;
15.         private IntPtr _unityHWND = IntPtr.Zero;
16.  
17.         private const int WM_ACTIVATE = 0x0006;
18.         private readonly IntPtr WA_ACTIVE = new IntPtr(1);
19.         private readonly IntPtr WA_INACTIVE = new IntPtr(0);
20.  
21.         //Frame p = MainWindow.Instance.floatingFrame;
22.         Grid UnityContent;
23.  
24.         bool initialized = false;
25.  
26.         public MainWindow()
27.         {
28.             InitializeComponent();
29.             // this.DataContext = new ViewModels.MainViewModel();
30.             UnityContent = unityContent;
31.             //MainWindow.Instance.MainWindowClosing += Application_Exit;
32.  
33.             System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
34.             dispatcherTimer.Tick += attemptInit;
35.             dispatcherTimer.Interval = new TimeSpan(0, 0, 1);
36.             dispatcherTimer.Start();
37.         }
38.         void attemptInit(object sender, EventArgs e)
39.         {
40.  
41.             if (initialized)
42.                 return;
43.  
44.             HwndSource source = (HwndSource)HwndSource.FromVisual(UnityContent);
45.  
46.             Debug.WriteLine("attempting to get handle...");
47.  
48.             if (source == null)
49.             {
50.                 Debug.WriteLine("Failed to get handle source");
51.                 return;
52.             }
53.  
54.             IntPtr hWnd = source.Handle;
55.  
56.             try
57.             {
58.                 _process = new Process();
59.                 _process.StartInfo.FileName = "path";
60.                 _process.StartInfo.Arguments = "-parentHWND " + hWnd.ToInt32() + " " + Environment.CommandLine;
61.                 _process.StartInfo.UseShellExecute = true;
62.                 _process.StartInfo.CreateNoWindow = true;
63.  
64.                 _process.Start();
65.  
66.                 _process.WaitForInputIdle();
67.                 // Doesn't work for some reason ?!
68.                 //hWnd = _process.MainWindowHandle;
69.                 EnumChildWindows(hWnd, WindowEnum, IntPtr.Zero);
70.  
71.                 //unityHWNDLabel.Text = "Unity HWND: 0x" + unityHWND.ToString("X8");
72.                 Debug.WriteLine("Unity HWND: 0x" + _unityHWND.ToString("X8"));
73.  
74.                 // TODO: rename. What are the Args?
75.                 UnityContentResize(this, EventArgs.Empty);
76.  
77.                 initialized = true;
78.             }
79.             catch (Exception ex)
80.             {
81.                 MessageBox.Show(ex.Message + ".\nCheck if Container.exe is placed next to Earth and mooon.exe");
82.             }
83.         }
84.  
85.         private void ActivateUnityWindow()
86.         {
87.             SendMessage(_unityHWND, WM_ACTIVATE, WA_ACTIVE, IntPtr.Zero);
88.         }
89.  
90.         private void DeactivateUnityWindow()
91.         {
92.             SendMessage(_unityHWND, WM_ACTIVATE, WA_INACTIVE, IntPtr.Zero);
93.         }
94.  
95.         private int WindowEnum(IntPtr hwnd, IntPtr lparam)
96.         {
97.             _unityHWND = hwnd;
98.             ActivateUnityWindow();
99.             return 0;
100.         }
101.  
102.         private void UnityContentResize(object sender, EventArgs e)
103.         {
104.             MoveWindow(_unityHWND, 0, 0, (int)UnityContent.Width, (int)UnityContent.Height, true);
105.             Debug.WriteLine("RESIZED UNITY WINDOW TO: " + (int)UnityContent.Width + "x" + (int)UnityContent.Height);
106.             ActivateUnityWindow();
107.         }
108.  
109.         // Close Unity application
110.         private void ApplicationExit(object sender, EventArgs e)
111.         {
112.             try
113.             {
114.                 _process.CloseMainWindow();
115.  
116.                 Thread.Sleep(1000);
117.                 while (!_process.HasExited)
118.                     _process.Kill();
119.             }
120.             catch (Exception)
121.             {
122.  
123.             }
124.         }
125.  
126.         private void UnityContentActivate(object sender, EventArgs e)
127.         {
128.             ActivateUnityWindow();
129.         }
130.  
131.         private void UnityContentDeactivate(object sender, EventArgs e)
132.         {
133.             DeactivateUnityWindow();
134.         }
135.     }

I've been stuck on this problem for two days.
Is there anyone who can help me?

 

First of all thanks for the reply.
The above problem was solved by myself. I solved it with <WindowsFormsHost> tag and handler. thank you.

↓ here is run window