From 2da36bfe5aec9685d5b261b1dd2199fa3f73b1ba Mon Sep 17 00:00:00 2001
From: Stefan Neis <Stefan.Neis@t-online.de>
Date: Sun, 2 May 2004 16:48:22 +0000
Subject: [PATCH] Don't choke on NULL pointer passed into wxSlider::GetSize.
 Take the inverted coordinate system into account when computing size.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27066 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/os2/slider.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/os2/slider.cpp b/src/os2/slider.cpp
index 7662c87bfb..db9beff768 100644
--- a/src/os2/slider.cpp
+++ b/src/os2/slider.cpp
@@ -862,8 +862,10 @@ void wxSlider::GetSize(
         wxFindMaxSize( m_hStaticValue
                       ,&vRect
                      );
-    *pnWidth  = vRect.xRight - vRect.xLeft;
-    *pnHeight = vRect.yBottom - vRect.yTop;
+    if (pnWidth)
+        *pnWidth  = vRect.xRight - vRect.xLeft;
+    if (pnHeight)
+        *pnHeight = vRect.yTop - vRect.yBottom;
 } // end of wxSlider::GetSize
 
 int wxSlider::GetThumbLength() const
-- 
2.45.2