From 18d447443d160c40d42621644b557eecc42ee765 Mon Sep 17 00:00:00 2001
From: Michael Meeks <michael.meeks@collabora.com>
Date: Sat, 29 Aug 2015 23:52:06 +0100
Subject: tdf#93536 - avoid crash when calling ToTop on disposed window.

Change-Id: I677f47f6b60271dc56c9d3d123cf982c00866eb9
Reviewed-on: https://gerrit.libreoffice.org/18136
Reviewed-by: Maxim Monastirsky <momonasmon@gmail.com>
Tested-by: Maxim Monastirsky <momonasmon@gmail.com>
---
 vcl/source/window/stacking.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/vcl/source/window/stacking.cxx b/vcl/source/window/stacking.cxx
index dc0f78e78d72..52d9685f343d 100644
--- a/vcl/source/window/stacking.cxx
+++ b/vcl/source/window/stacking.cxx
@@ -438,6 +438,8 @@ void Window::ImplHideAllOverlaps()
 
 void Window::ToTop( sal_uInt16 nFlags )
 {
+    if (!mpWindowImpl)
+        return;
 
     ImplStartToTop( nFlags );
     ImplFocusToTop( nFlags, IsReallyVisible() );
-- 
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