From 2fffb9d9b756ffb685abb98f3ab883bbda6bfcc0 Mon Sep 17 00:00:00 2001
From: Ansgar Becker <ansgarbecker@users.noreply.github.com>
Date: Mon, 6 Jun 2011 20:00:15 +0000
Subject: [PATCH] Silence EAccessViolations in TWinControl.WMKeyDown. Fixes
 issue #2439.

---
 source/grideditlinks.pas | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/source/grideditlinks.pas b/source/grideditlinks.pas
index 4bc09a67..7c191d5c 100644
--- a/source/grideditlinks.pas
+++ b/source/grideditlinks.pas
@@ -333,8 +333,13 @@ begin
         FOldWindowProc(Message);
     WM_GETDLGCODE: // "WantTabs" mode for main control
       Message.Result := Message.Result or DLGC_WANTARROWS or DLGC_WANTALLKEYS or DLGC_WANTTAB;
-    else
-      FOldWindowProc(Message);
+    else begin
+      try
+        FOldWindowProc(Message);
+      except
+        // EAccessViolation occurring in some cases
+      end;
+    end;
   end;
 end;