From 3f5ec1018412f737aef2cc6a679d9ffa78d6d754 Mon Sep 17 00:00:00 2001
From: Andrew Coates <30809111+acoates-ms@users.noreply.github.com>
Date: Wed, 12 Nov 2025 09:46:10 -0800
Subject: [PATCH 1/2] Add TSF support to TextInput (#15363)

* Add TSF support to TextInput

* Change files
---
 ...ative-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json | 7 +++++++
 .../TextInput/WindowsTextInputComponentView.cpp            | 3 +++
 2 files changed, 10 insertions(+)
 create mode 100644 change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json

diff --git a/change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json b/change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json
new file mode 100644
index 00000000000..35ffe563a9d
--- /dev/null
+++ b/change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json
@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "Add TSF support to TextInput",
+  "packageName": "react-native-windows",
+  "email": "30809111+acoates-ms@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}
diff --git a/vnext/Microsoft.ReactNative/Fabric/Composition/TextInput/WindowsTextInputComponentView.cpp b/vnext/Microsoft.ReactNative/Fabric/Composition/TextInput/WindowsTextInputComponentView.cpp
index 0ceb92f0b3a..c4cb0bbc7cd 100644
--- a/vnext/Microsoft.ReactNative/Fabric/Composition/TextInput/WindowsTextInputComponentView.cpp
+++ b/vnext/Microsoft.ReactNative/Fabric/Composition/TextInput/WindowsTextInputComponentView.cpp
@@ -1592,6 +1592,9 @@ WindowsTextInputComponentView::createVisual() noexcept {
   LRESULT res;
   winrt::check_hresult(m_textServices->TxSendMessage(EM_SETTEXTMODE, TM_PLAINTEXT, 0, &res));
 
+  // Enable TSF support
+  winrt::check_hresult(m_textServices->TxSendMessage(EM_SETEDITSTYLE, SES_USECTF, SES_USECTF, nullptr));
+
   m_caretVisual = m_compContext.CreateCaretVisual();
   visual.InsertAt(m_caretVisual.InnerVisual(), 0);
   m_caretVisual.IsVisible(false);

From 91d70d1b91599058aeb7475dc0b3ecafc2e124fb Mon Sep 17 00:00:00 2001
From: Andrew Coates <30809111+acoates-ms@users.noreply.github.com>
Date: Wed, 12 Nov 2025 09:47:13 -0800
Subject: [PATCH 2/2] fix change file

---
 ...act-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json b/change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json
index 35ffe563a9d..202e0bb4ea5 100644
--- a/change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json
+++ b/change/react-native-windows-055a5eb5-8f2c-409e-a4b4-4ba382eeeae0.json
@@ -1,5 +1,5 @@
 {
-  "type": "prerelease",
+  "type": "patch",
   "comment": "Add TSF support to TextInput",
   "packageName": "react-native-windows",
   "email": "30809111+acoates-ms@users.noreply.github.com",