1 files changed, 48 insertions, 0 deletions
diff --git a/vcl/source/window/debug.cxx b/vcl/source/window/debug.cxx
new file mode 100644
index 000000000..346456923
--- /dev/null
+++ b/vcl/source/window/debug.cxx
@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vcl/window.hxx>
+#include <tools/debug.hxx>
+
+#include <window.h>
+
+#ifdef DBG_UTIL
+const char* ImplDbgCheckWindow(const void* pObj)
+{
+    DBG_TESTSOLARMUTEX();
+
+    const vcl::Window* pWindow = static_cast<vcl::Window const*>(pObj);
+
+    if ((pWindow->GetType() < WindowType::FIRST) || (pWindow->GetType() > WindowType::LAST))
+        return "Window data overwrite";
+
+    // check window-chain
+    vcl::Window* pChild = pWindow->mpWindowImpl->mpFirstChild;
+    while (pChild)
+    {
+        if (pChild->mpWindowImpl->mpParent != pWindow)
+            return "Child-Window-Parent wrong";
+        pChild = pChild->mpWindowImpl->mpNext;
+    }
+
+    return nullptr;
+}
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */