From 07460370468e902d9d0d3346a767238a7a3a9ca4 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sun, 3 Oct 2004 12:11:19 +0000
Subject: [PATCH] destroy any TLWs still alive when the app terminates (avoids
 problems with classes unregistering under MSW and memory leaks everywhere)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29616 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/common/appcmn.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/common/appcmn.cpp b/src/common/appcmn.cpp
index 335d9ec82b..146378d59f 100644
--- a/src/common/appcmn.cpp
+++ b/src/common/appcmn.cpp
@@ -128,9 +128,19 @@ wxAppBase::~wxAppBase()
 
 void wxAppBase::CleanUp()
 {
-    // one last chance for pending objects to be cleaned up
+    // clean up all the pending objects
     DeletePendingObjects();
 
+    // and any remaining TLWs (they remove themselves from wxTopLevelWindows
+    // when destroyed, so iterate until none are left)
+    while ( !wxTopLevelWindows.empty() )
+    {
+        // do not use Destroy() here as it only puts the TLW in pending list
+        // but we want to delete them now
+        delete wxTopLevelWindows.GetFirst()->GetData();
+    }
+
+    // undo everything we did in Initialize() above
     wxBitmap::CleanUpHandlers();
 
     wxDeleteStockObjects();
-- 
2.50.0