From d7cda9b290e16af1c37c37cafcdb1ce031243cd0 Mon Sep 17 00:00:00 2001
From: Robert Roebling <robert@roebling.de>
Date: Fri, 10 Oct 2008 07:36:36 +0000
Subject: [PATCH] Fix crash with NULL pointer dereferencing

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56208 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/datavgen.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index 23bc5ec610..794a94a966 100644
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -4154,7 +4154,7 @@ WXLRESULT wxDataViewCtrl::MSWWindowProc(WXUINT nMsg,
 wxSize wxDataViewCtrl::GetSizeAvailableForScrollTarget(const wxSize& size)
 {
     wxSize newsize = size;
-    if (!HasFlag(wxDV_NO_HEADER))
+    if (!HasFlag(wxDV_NO_HEADER) && (m_headerArea))
        newsize.y -= m_headerArea->GetSize().y;
     
     return newsize;
-- 
2.50.0