From 2a8463b558ab5406e696f96d04fc279cfc7f2833 Mon Sep 17 00:00:00 2001
From: Aric Stewart <aric@codeweavers.com>
Date: Fri, 30 Mar 2007 11:35:12 -0500
Subject: [PATCH] comctl32: Unset active page while setting a new active page
 for a propsheet.

Before calling the PSN_SETACTIVE in PROPSHEET_SetCurSel set the
active_page to -1. This prevents crashes and corruption of the
property sheet if the application makes any modifications during the
PSN_SETACTIVE.
---
 dlls/comctl32/propsheet.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dlls/comctl32/propsheet.c b/dlls/comctl32/propsheet.c
index 636b0b286c3..c84f23aef92 100644
--- a/dlls/comctl32/propsheet.c
+++ b/dlls/comctl32/propsheet.c
@@ -2023,6 +2023,11 @@ static BOOL PROPSHEET_SetCurSel(HWND hwndDlg,
     return FALSE;
   }
 
+  /* unset active page while doing this transition. */
+  if (psInfo->active_page != -1)
+     ShowWindow(psInfo->proppage[psInfo->active_page].hwndPage, SW_HIDE);
+  psInfo->active_page = -1;
+
   while (1) {
     int result;
     PSHNOTIFY psn;
-- 
2.11.4.GIT