[1/3] comctl32/listview: Block header items drag if LVS_EX_HEADERDRAGDROP isn't set

[Nikolay Sivov]

Changelog:
    - block header items drag if LVS_EX_HEADERDRAGDROP isn't set
    - also forward drag notifications to parent.

>From 4364744b2123775a0b498b3a8fac5cb088efe576 Mon Sep 17 00:00:00 2001
From: Nikolay Sivov <bunglehead at gmail.com>
Date: Mon, 15 Jun 2009 18:15:51 +0400
Subject: Block header items drag if LVS_EX_HEADERDRAGDROP isn't set.
 Also forward drag notifications to parent.

---
 dlls/comctl32/listview.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/dlls/comctl32/listview.c b/dlls/comctl32/listview.c
index fd377ff..24c298e 100644
--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -9233,11 +9233,16 @@ static LRESULT LISTVIEW_HeaderNotification(LISTVIEW_INFO *infoPtr, const NMHEADE
 	    LISTVIEW_DrawTrackLine(infoPtr);
 	    infoPtr->xTrackLine = -1;
 	    break;
-	    
+
+        case HDN_BEGINDRAG:
+            notify_forward_header(infoPtr, lpnmh);
+            return (infoPtr->dwLvExStyle & LVS_EX_HEADERDRAGDROP) == 0;
+
         case HDN_ENDDRAG:
             FIXME("Changing column order not implemented\n");
+            notify_forward_header(infoPtr, lpnmh);
             return TRUE;
-            
+
         case HDN_ITEMCHANGINGW:
         case HDN_ITEMCHANGINGA:
             return notify_forward_header(infoPtr, lpnmh);
-- 
1.5.6.5