From b0cb91859855885450db5b39dec26ce967e5caf6 Mon Sep 17 00:00:00 2001
From: Stefan Csomor <csomor@advancedconcepts.ch>
Date: Sun, 2 Jun 2013 09:33:33 +0000
Subject: [PATCH] propagate scroll wheel events to parent, fixes #15187

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74086 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/osx/cocoa/window.mm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/osx/cocoa/window.mm b/src/osx/cocoa/window.mm
index 9bda942..a9efa58 100644
--- a/src/osx/cocoa/window.mm
+++ b/src/osx/cocoa/window.mm
@@ -1190,7 +1190,8 @@ void wxWidgetCocoaImpl::mouseEvent(WX_NSEvent event, WXWidget slf, void *_cmd)
     if ( !DoHandleMouseEvent(event) )
     {
         // for plain NSView mouse events would propagate to parents otherwise
-        if (!IsUserPane())
+        // scrollwheel events have to be propagated if not handled in all cases
+        if (!IsUserPane() || [event type] == NSScrollWheel )
         {
             wxOSX_EventHandlerPtr superimpl = (wxOSX_EventHandlerPtr) [[slf superclass] instanceMethodForSelector:(SEL)_cmd];
             superimpl(slf, (SEL)_cmd, event);
-- 
2.7.4