From e540189a117e769bcd5ba8855a683da77fa52afa Mon Sep 17 00:00:00 2001
From: Emmanuel Hansen <emmausssss@gmail.com>
Date: Thu, 16 Nov 2023 15:52:27 +0000
Subject: [PATCH] add top border size to hidden border size

---
 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 71bd9715f9..546632d85c 100644
--- a/src/Windows/Avalonia.Win32/WindowImpl.cs
+++ b/src/Windows/Avalonia.Win32/WindowImpl.cs
@@ -527,7 +527,7 @@ namespace Avalonia.Win32
                 GetWindowRect(_hwnd, out var frameRect);
                 var borderWidth = GetSystemMetrics(SystemMetric.SM_CXBORDER);
 
-                return new PixelSize(clientRect.left - frameRect.left - borderWidth, 0);
+                return new PixelSize(clientRect.left - frameRect.left - borderWidth, clientRect.top - frameRect.top - borderWidth);
             }
         }