Rémi Bernon : win32u: Call SetDesktopWindow when desktop window is successfully created.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 8b5bdb10d586d069e3ed5bc5138015f742a9183b
URL:    https://gitlab.winehq.org/wine/wine/-/commit/8b5bdb10d586d069e3ed5bc5138015f...

Author: Rémi Bernon 
Date:   Mon May 29 13:52:16 2023 +0200

win32u: Call SetDesktopWindow when desktop window is successfully created.

When the default desktop window is created, its parent is always NULL,
and SetDesktopWindow is never called here.

---

dlls/win32u/window.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/dlls/win32u/window.c b/dlls/win32u/window.c
index 599a0b7300e..e1cd80f8a36 100644
--- a/dlls/win32u/window.c
+++ b/dlls/win32u/window.c
@@ -4950,10 +4950,10 @@ static WND *create_window_handle( HWND parent, HWND owner, UNICODE_STRING *name,

if (name->Buffer == (const WCHAR *)DESKTOP_CLASS_ATOM)
         {
-            if (!thread_info->top_window)
-                thread_info->top_window = HandleToUlong( full_parent ? full_parent : handle );
+            if (!thread_info->top_window) thread_info->top_window = HandleToUlong( full_parent ? full_parent : handle );
             else assert( full_parent == UlongToHandle( thread_info->top_window ));
-            if (full_parent) user_driver->pSetDesktopWindow( UlongToHandle( thread_info->top_window ));
+            if (!thread_info->top_window) ERR_(win)( "failed to create desktop window\n" );
+            else user_driver->pSetDesktopWindow( UlongToHandle( thread_info->top_window ));
             register_builtin_classes();
         }
         else  /* HWND_MESSAGE parent */