From 4b7b652f47db931e2ff99c08a2ee7f7848e2d15c Mon Sep 17 00:00:00 2001
From: luigi__ <luigi__@users.sf.net>
Date: Tue, 7 Apr 2009 16:37:01 +0000
Subject: [PATCH] Hacky fix for the crash of the IO reg view tool. Reason of
 the crash: a WM_COMMAND message was being sent for IDC_AUTO_UPDATE_SECS
 before the WM_INITDIALOG message was sent. I can't figure out why.

---
 desmume/src/windows/IORegView.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/desmume/src/windows/IORegView.cpp b/desmume/src/windows/IORegView.cpp
index 0ab91e2ab..fc6a5a0a7 100644
--- a/desmume/src/windows/IORegView.cpp
+++ b/desmume/src/windows/IORegView.cpp
@@ -130,6 +130,7 @@ BOOL CALLBACK IoregView_Proc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lPa
 				SendMessage(hwnd, WM_COMMAND, IDC_REFRESH, 0);
 				return 1;
             case WM_COMMAND :
+				if(IORegView == NULL) return 0;
                  switch (LOWORD (wParam))
                  {
                         case IDC_FERMER :