From 6443de026310552cacd68a6d0318e73d14929680 Mon Sep 17 00:00:00 2001
From: Robin Dunn <robin@alldunn.com>
Date: Tue, 14 Aug 2001 18:48:37 +0000
Subject: [PATCH] Fixed the drawing of the HRules so they don't try to iterate
 over all the zillions of items in a large (or virtual) list control

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11379 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/msw/listctrl.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp
index 4f3ed90f60..156485d6d5 100644
--- a/src/msw/listctrl.cpp
+++ b/src/msw/listctrl.cpp
@@ -1906,7 +1906,8 @@ void wxListCtrl::OnPaint(wxPaintEvent& event)
     int i;
     if (drawHRules)
     {
-        for (i = 0; i < itemCount; i++)
+        long top = GetTopItem();
+        for (i = top; i < top + GetCountPerPage() + 1; i++)
         {
             if (GetItemRect(i, itemRect))
             {
-- 
2.50.0