From cfca90cfcae30902ee40a18c06f1026a997bd42f Mon Sep 17 00:00:00 2001
From: Lighto <adirh3@gmail.com>
Date: Mon, 2 Oct 2023 03:05:40 +0300
Subject: [PATCH] Fixed an issue that windows empty Win32 window would show
 when changing properties (#13097)

Co-authored-by: Max Katz <maxkatz6@outlook.com>
---
 src/Windows/Avalonia.Win32/WindowImpl.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Windows/Avalonia.Win32/WindowImpl.cs b/src/Windows/Avalonia.Win32/WindowImpl.cs
index 6062c6b762..acf9bd72d2 100644
--- a/src/Windows/Avalonia.Win32/WindowImpl.cs
+++ b/src/Windows/Avalonia.Win32/WindowImpl.cs
@@ -1409,7 +1409,7 @@ namespace Avalonia.Win32
             }
 
             // Ensure window state if decorations change
-            if (oldProperties.Decorations != newProperties.Decorations)
+            if (_shown && oldProperties.Decorations != newProperties.Decorations)
                 ShowWindow(WindowState, false);
         }