SDL: Fixed warning

SDL Commits
1 
From 674989261d1f3c7efd36a1cfdfc0efbc1cca6949 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sun, 13 Nov 2022 11:09:20 -0800
Subject: [PATCH] Fixed warning

Fixes https://github.com/libsdl-org/SDL/issues/5842
---
 src/video/winrt/SDL_winrtvideo.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/winrt/SDL_winrtvideo.cpp b/src/video/winrt/SDL_winrtvideo.cpp
index 3a7b220b9e82..7511aa531036 100644
--- a/src/video/winrt/SDL_winrtvideo.cpp
+++ b/src/video/winrt/SDL_winrtvideo.cpp
@@ -526,7 +526,7 @@ WINRT_DetectWindowFlags(SDL_Window * window)
 
 #if SDL_WINRT_USE_APPLICATIONVIEW
     if (data->appView) {
-        is_fullscreen = data->appView->IsFullScreen;
+        is_fullscreen = data->appView->IsFullScreenMode;
     }
 #elif (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) || (NTDDI_VERSION == NTDDI_WIN8)
     is_fullscreen = true;