Don't activate window when extending client area.

Fixes #5988
5 years ago · 78f7726289
1 changed files with 1 additions and 1 deletions
--- a/src/Windows/Avalonia.Win32/WindowImpl.cs
+++ b/src/Windows/Avalonia.Win32/WindowImpl.cs
@ -900,7 +900,7 @@ namespace Avalonia.Win32
                IntPtr.Zero,
                rcWindow.left, rcWindow.top,
                rcClient.Width, rcClient.Height,
-                SetWindowPosFlags.SWP_FRAMECHANGED);
+                SetWindowPosFlags.SWP_FRAMECHANGED | SetWindowPosFlags.SWP_NOACTIVATE);

            if (_isClientAreaExtended && WindowState != WindowState.FullScreen)
            {