From 789e9abb4527c87ff4503f252c925d247b2480a1 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Fri, 14 Jun 2013 13:06:46 +0000
Subject: [PATCH] Handle NULL flags argument in wxOSX wxNotebook::HitTest().

Don't crash if flags are not specified, this parameter is optional.

Closes #15256.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74238 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/osx/cocoa/notebook.mm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/osx/cocoa/notebook.mm b/src/osx/cocoa/notebook.mm
index 973fcf5ade..86820dc0ea 100644
--- a/src/osx/cocoa/notebook.mm
+++ b/src/osx/cocoa/notebook.mm
@@ -272,10 +272,12 @@ public:
         NSTabViewItem* hitItem = [slf tabViewItemAtPoint:nspt];
         
         if (!hitItem) {
-            *flags = wxBK_HITTEST_NOWHERE;
+            if ( flags )
+                *flags = wxBK_HITTEST_NOWHERE;
         } else {
             retval = [slf indexOfTabViewItem:hitItem];
-            *flags = wxBK_HITTEST_ONLABEL;
+            if ( flags )
+                *flags = wxBK_HITTEST_ONLABEL;
         }
         
         return retval; 
-- 
2.47.2