From fb55140ce404edb606464a1919f5695f0fd4c97d Mon Sep 17 00:00:00 2001
From: Mahdi Hosseini <mahdidvb72@gmail.com>
Date: Tue, 14 Jan 2025 15:26:12 +0330
Subject: [PATCH] Update TransparentTintBackdrop.cs

Fix #207
---
 src/WinUIEx/TransparentTintBackdrop.cs | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/WinUIEx/TransparentTintBackdrop.cs b/src/WinUIEx/TransparentTintBackdrop.cs
index 2c46861..b572a46 100644
--- a/src/WinUIEx/TransparentTintBackdrop.cs
+++ b/src/WinUIEx/TransparentTintBackdrop.cs
@@ -1,6 +1,7 @@
 using Microsoft.UI.Composition;
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Hosting;
+using Microsoft.UI;
 using System;
 using System.Runtime.InteropServices;
 using Windows.Win32;
@@ -60,9 +61,7 @@ protected override Windows.UI.Composition.CompositionBrush CreateBrush(Windows.U
         /// <inheritdoc />
         protected override void OnTargetConnected(ICompositionSupportsSystemBackdrop connectedTarget, XamlRoot xamlRoot)
         {
-            var inspectable = connectedTarget.As<IInspectable>();
-            var xamlSource = DesktopWindowXamlSource.FromAbi(inspectable.ThisPtr);
-            var hWnd = xamlSource.SiteBridge.SiteView.EnvironmentView.AppWindowId.Value;
+            ulong hWnd = (ulong)Win32Interop.GetWindowFromWindowId(xamlRoot.ContentIslandEnvironment.AppWindowId);
 
             monitor = new WindowMessageMonitor((IntPtr)hWnd);
             monitor.WindowMessageReceived += Monitor_WindowMessageReceived;