From fb400c720d7029ac817605d405a6cef06188d52e Mon Sep 17 00:00:00 2001
From: Graeme Geldenhuys <graeme@mastermaths.co.za>
Date: Thu, 26 Aug 2010 10:46:52 +0200
Subject: docview: fixed access violation when viewing some topics

* Not all topics need to be in the TOC tree view. When viewing
  such hidden topics, the method updating the Status Bar caused
  an access violation. Added some checks which new fixes the issue.
---
 docview/src/frm_main.pas | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'docview')

diff --git a/docview/src/frm_main.pas b/docview/src/frm_main.pas
index 4eae0358..c3c0fd1e 100644
--- a/docview/src/frm_main.pas
+++ b/docview/src/frm_main.pas
@@ -954,6 +954,8 @@ begin
   s := '';
   sep := '';
   n := tvContents.Selection;
+  if n = nil then
+    Exit;
   while n.Parent <> nil do
   begin
     s := n.Parent.Text + sep + s;
-- 
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