From 04b9058ebbe6e63a4fc8b0fe1476e7f5b4dd6706 Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Thu, 2 Jul 2020 15:29:25 -0300
Subject: [PATCH] dont disable close button if we are not extending client
 area.

---
 src/Windows/Avalonia.Win32/WindowImpl.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Windows/Avalonia.Win32/WindowImpl.cs b/src/Windows/Avalonia.Win32/WindowImpl.cs
index a5c9c9c3c3..f7e8a0a3e2 100644
--- a/src/Windows/Avalonia.Win32/WindowImpl.cs
+++ b/src/Windows/Avalonia.Win32/WindowImpl.cs
@@ -759,8 +759,8 @@ namespace Avalonia.Win32
                 _extendedMargins = new Thickness();
             }
 
-            if(_extendChromeHints.HasFlag(ExtendClientAreaChromeHints.SystemChrome) &&
-                !_extendChromeHints.HasFlag(ExtendClientAreaChromeHints.PreferSystemChrome))
+            if(!_isClientAreaExtended || (_extendChromeHints.HasFlag(ExtendClientAreaChromeHints.SystemChrome) &&
+                !_extendChromeHints.HasFlag(ExtendClientAreaChromeHints.PreferSystemChrome)))
             {
                 EnableCloseButton(_hwnd);
             }