Rémi Bernon : win32u: Use the shared memory to read the desktop flags.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 821c95aa6ad120048edeef25d6b329f95fc1b686
URL:    https://gitlab.winehq.org/wine/wine/-/commit/821c95aa6ad120048edeef25d6b329f...

Author: Rémi Bernon 
Date:   Fri Jun 21 22:30:23 2024 +0200

win32u: Use the shared memory to read the desktop flags.

---

dlls/win32u/winstation.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/dlls/win32u/winstation.c b/dlls/win32u/winstation.c
index 1a1b37f6eda..0500d510fd4 100644
--- a/dlls/win32u/winstation.c
+++ b/dlls/win32u/winstation.c
@@ -256,12 +256,16 @@ NTSTATUS get_shared_queue( struct object_lock *lock, const queue_shm_t **queue_s

BOOL is_virtual_desktop(void)
 {
-    HANDLE desktop = NtUserGetThreadDesktop( GetCurrentThreadId() );
-    USEROBJECTFLAGS flags = {0};
-    DWORD len;
+    struct object_lock lock = OBJECT_LOCK_INIT;
+    const desktop_shm_t *desktop_shm;
+    BOOL ret = FALSE;
+    UINT status;

-    if (!NtUserGetObjectInformation( desktop, UOI_FLAGS, &flags, sizeof(flags), &len )) return FALSE;
-    return !!(flags.dwFlags & DF_WINE_VIRTUAL_DESKTOP);
+    while ((status = get_shared_desktop( &lock, &desktop_shm )) == STATUS_PENDING)
+        ret = !!(desktop_shm->flags & DF_WINE_VIRTUAL_DESKTOP);
+    if (status) ret = FALSE;
+
+    return ret;
 }

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