From f8de4601238042a110a5e3461ef53eb853be556e Mon Sep 17 00:00:00 2001
From: Werner F Bruhin <wernerfbd@gmx.ch>
Date: Thu, 5 Feb 2015 10:27:45 +0100
Subject: [PATCH] - prevent "wrapped C/C++ object of type MSWComboTreeBox has
 been deleted"

---
 wx/lib/combotreebox.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wx/lib/combotreebox.py b/wx/lib/combotreebox.py
index d7f92bc8..588967ce 100644
--- a/wx/lib/combotreebox.py
+++ b/wx/lib/combotreebox.py
@@ -818,7 +818,7 @@ class MSWComboTreeBox(NativeComboTreeBox):
         return events
 
     def OnSelectionChangedInTree(self, event):
-        if self.IsBeingDeleted():
+        if not self:
             return
         item = event.GetItem()
         if item: