浮动小游戏已经基本搞好

新做了两个设置界面
一些bug修复和优化

Assets/scripts/WebView/WebViewWin32.cs

@@ -21,6 +21,9 @@ public static class WebViewWin32
     [DllImport("user32.dll", CharSet = CharSet.Unicode)]
     private static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
 
+    [DllImport("user32.dll")]
+    private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
+
     [StructLayout(LayoutKind.Sequential)]
     public struct RECT
     {
@@ -45,10 +48,26 @@ public static class WebViewWin32
         public IntPtr lpData;
     }
 
+    // SetWindowPos flags
     const uint SWP_NOZORDER = 0x0004;
     const uint SWP_NOACTIVATE = 0x0010;
+    const uint SWP_NOMOVE = 0x0002;
+    const uint SWP_NOSIZE = 0x0001;
+
+    // HWND insert-after special values
+    static readonly IntPtr HWND_TOP = new IntPtr(0);
+    static readonly IntPtr HWND_BOTTOM = new IntPtr(1);
+    static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
+    static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2);
+
     const uint WM_COPYDATA = 0x004A;
 
+    // ShowWindow commands
+    const int SW_HIDE = 0;
+    const int SW_SHOW = 5;
+    const int SW_MINIMIZE = 6;
+    const int SW_RESTORE = 9;
+
     public static bool TrySetWindowRect(Process process, int x, int y, int width, int height)
     {
         if (process == null || process.HasExited)
@@ -74,6 +93,44 @@ public static class WebViewWin32
         return true;
     }
 
+    /// <summary>
+    /// Place the given process window directly above the target process window in Z-order
+    /// and set its position/size. This ensures the webview sits just above the Unity window.
+    /// </summary>
+    public static bool TrySetWindowRectAboveProcess(Process process, Process targetProcess, int x, int y, int width, int height)
+    {
+        if (process == null || process.HasExited || targetProcess == null || targetProcess.HasExited)
+            return false;
+
+        if (process.MainWindowHandle == IntPtr.Zero)
+        {
+            process.Refresh();
+            if (process.MainWindowHandle == IntPtr.Zero)
+                return false;
+        }
+
+        if (targetProcess.MainWindowHandle == IntPtr.Zero)
+        {
+            targetProcess.Refresh();
+            if (targetProcess.MainWindowHandle == IntPtr.Zero)
+                return false;
+        }
+
+        // Place process window after targetProcess window in Z-order (i.e. on top of target)
+        // Do not use SWP_NOZORDER so that z-order is changed.
+        bool ok = SetWindowPos(
+            process.MainWindowHandle,
+            targetProcess.MainWindowHandle,
+            x,
+            y,
+            width,
+            height,
+            SWP_NOACTIVATE
+        );
+
+        return ok;
+    }
+
     public static bool TryGetWindowRect(Process process, out RECT rect)
     {
         rect = new RECT();
@@ -114,6 +171,48 @@ public static class WebViewWin32
         return true;
     }
 
+    /// <summary>
+    /// Try to show or hide the given process main window.
+    /// </summary>
+    public static bool TryShowWindow(Process process, bool show)
+    {
+        if (process == null || process.HasExited)
+            return false;
+
+        if (process.MainWindowHandle == IntPtr.Zero)
+        {
+            process.Refresh();
+            if (process.MainWindowHandle == IntPtr.Zero)
+                return false;
+        }
+
+        try
+        {
+            if (!show)
+            {
+                // Minimize instead of hide
+                return ShowWindow(process.MainWindowHandle, SW_MINIMIZE);
+            }
+            else
+            {
+                // Restore and bring to top
+                bool r = ShowWindow(process.MainWindowHandle, SW_RESTORE);
+                try
+                {
+                    // bring to top without making it topmost
+                    SetWindowPos(process.MainWindowHandle, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
+                }
+                catch { }
+                return r;
+            }
+        }
+        catch (Exception e)
+        {
+            UnityEngine.Debug.LogWarning("TryShowWindow failed: " + e.Message);
+            return false;
+        }
+    }
+
     /// <summary>
     /// 尝试向指定进程的主窗口发送 WM_COPYDATA 消息，lParam 为包含 Unicode 字符串的 COPYDATASTRUCT。
     /// 接收方需要处理 WM_COPYDATA 并解释字符串为 URL 并导航。