From 79af1859fa9096e45267492afe3abb7081902f74 Mon Sep 17 00:00:00 2001
From: Eric Pouech <eric.pouech@orange.fr>
Date: Wed, 2 Jun 2010 22:22:53 +0200
Subject: [PATCH] winhelp: When opening a page, don't reopen the same page from
 macro, even if requested.

---
 programs/winhlp32/winhelp.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/programs/winhlp32/winhelp.c b/programs/winhlp32/winhelp.c
index 2396917563a..1f92514ebc5 100644
--- a/programs/winhlp32/winhelp.c
+++ b/programs/winhlp32/winhelp.c
@@ -716,6 +716,14 @@ BOOL WINHELP_CreateHelpWindow(WINHELP_WNDPAGE* wpage, int nCmdShow, BOOL remembe
                 SIZE    sz = {0, 0};
                 DWORD   flags = SWP_NOSIZE | SWP_NOMOVE;
 
+                if (win->page == wpage->page && win->info == wpage->wininfo)
+                {
+                    /* see #22979, some hlp files have a macro (run at page opening), which
+                     * jumps to the very same page
+                     * Exit gracefully in that case
+                     */
+                    return TRUE;
+                }
                 WINHELP_DeleteButtons(win);
                 bReUsed = TRUE;
                 SetWindowText(win->hMainWnd, WINHELP_GetCaption(wpage));