[vlc-commits] win32/events: fix crash when the window is being reopened

[Steve Lhomme]

vlc | branch: master | Steve Lhomme <robUx4 at videolabs.io> | Tue Nov  7 16:02:00 2017 +0100| [910722dd312819c2fcd4d0f72b177ac3b78a1cad] | committer: Jean-Baptiste Kempf

win32/events: fix crash when the window is being reopened

We may receive a stray message with no window attached, we just discard it.

Fixes #18753

Signed-off-by: Jean-Baptiste Kempf <jb at videolan.org>

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=910722dd312819c2fcd4d0f72b177ac3b78a1cad
---

 modules/video_output/win32/events.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/modules/video_output/win32/events.c b/modules/video_output/win32/events.c
index 88e67acba3..935ac562f7 100644
--- a/modules/video_output/win32/events.c
+++ b/modules/video_output/win32/events.c
@@ -122,9 +122,12 @@ static void MousePressed( event_thread_t *p_event, HWND hwnd, unsigned button );
 
 static void CALLBACK HideMouse(HWND hwnd, UINT uMsg, UINT_PTR idEvent, DWORD dwTime)
 {
-    VLC_UNUSED(hwnd); VLC_UNUSED(uMsg); VLC_UNUSED(dwTime);
-    event_thread_t *p_event = (event_thread_t *)idEvent;
-    UpdateCursor( p_event, false );
+    VLC_UNUSED(uMsg); VLC_UNUSED(dwTime);
+    if (hwnd)
+    {
+        event_thread_t *p_event = (event_thread_t *)idEvent;
+        UpdateCursor( p_event, false );
+    }
 }
 
 static void UpdateCursorMoved( event_thread_t *p_event )