From 69be9074f96e35f4e67faf9a6b4e64659f6d21fa Mon Sep 17 00:00:00 2001
From: ThomasGoulet73 <51839772+ThomasGoulet73@users.noreply.github.com>
Date: Fri, 23 Jan 2026 22:19:18 -0500
Subject: [PATCH] Reintroduce IDWriteFactory.CreateTextAnalyzer HRESULT
 validation

Contributes to dotnet/wpf#5305
---
 .../MS/internal/Text/TextInterface/Factory.cs               | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Text/TextInterface/Factory.cs b/src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Text/TextInterface/Factory.cs
index 9c1014f0f56..2c416bc3cfb 100644
--- a/src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Text/TextInterface/Factory.cs
+++ b/src/Microsoft.DotNet.Wpf/src/PresentationCore/MS/internal/Text/TextInterface/Factory.cs
@@ -325,7 +325,11 @@ internal TextAnalyzer CreateTextAnalyzer()
         {
             IDWriteTextAnalyzer* textAnalyzer = null;
 
-            _factory.Value->CreateTextAnalyzer(&textAnalyzer);
+            int hr = _factory.Value->CreateTextAnalyzer(&textAnalyzer);
+
+            GC.KeepAlive(this);
+
+            DWriteUtil.ConvertHresultToException(hr);
 
             return new TextAnalyzer((Native.IDWriteTextAnalyzer*)textAnalyzer);
         }