[reactos] 02/06: [NTUSER] Don't crash when the current thread doesn't have a desktop

[Giannis Adamopoulos]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=298a46acbf39eff14bfe9…

commit 298a46acbf39eff14bfe9a193b04c7b5f2a67350
Author:     Giannis Adamopoulos <gadamopoulos(a)reactos.org>
AuthorDate: Mon Dec 17 20:11:59 2018 +0200
Commit:     Giannis Adamopoulos <gadamopoulos(a)reactos.org>
CommitDate: Wed Dec 19 16:13:18 2018 +0200

    [NTUSER] Don't crash when the current thread doesn't have a desktop
---
 win32ss/user/ntuser/scrollex.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/win32ss/user/ntuser/scrollex.c b/win32ss/user/ntuser/scrollex.c
index dd3b1d47f0..c344cec947 100644
--- a/win32ss/user/ntuser/scrollex.c
+++ b/win32ss/user/ntuser/scrollex.c
@@ -14,20 +14,17 @@ static
 HWND FASTCALL
 co_IntFixCaret(PWND Window, RECTL *lprc, UINT flags)
 {
-   PDESKTOP Desktop;
    PTHRDCARETINFO CaretInfo;
    PTHREADINFO pti;
-   PUSER_MESSAGE_QUEUE ActiveMessageQueue;
+   PUSER_MESSAGE_QUEUE ThreadQueue;
    HWND hWndCaret;
    PWND WndCaret;
 
    ASSERT_REFS_CO(Window);
 
    pti = PsGetCurrentThreadWin32Thread();
-   Desktop = pti->rpdesk;
-   ActiveMessageQueue = Desktop->ActiveMessageQueue;
-   if (!ActiveMessageQueue) return 0;
-   CaretInfo = &ActiveMessageQueue->CaretInfo;
+   ThreadQueue = pti->MessageQueue;
+   CaretInfo = &ThreadQueue->CaretInfo;
    hWndCaret = CaretInfo->hWnd;
 
    WndCaret = ValidateHwndNoErr(hWndCaret);