From 20c93c2c0d75f33793c1613fbc45855a0a62f344 Mon Sep 17 00:00:00 2001
From: Evan Deaubl <wine@warpedview.com>
Date: Mon, 14 Mar 2005 10:51:06 +0000
Subject: [PATCH] TREEVIEW_DoSelectItem should not do any of the
 TVGN_FIRSTVISIBLE work if the newSelect parameter is NULL.

---
 dlls/comctl32/treeview.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/dlls/comctl32/treeview.c b/dlls/comctl32/treeview.c
index 640f86a0c32..b13c8aa0317 100644
--- a/dlls/comctl32/treeview.c
+++ b/dlls/comctl32/treeview.c
@@ -4242,9 +4242,12 @@ TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
 	break;
 
     case TVGN_FIRSTVISIBLE:
-	TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
-	TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
-	TREEVIEW_Invalidate(infoPtr, NULL);
+	if (newSelect != NULL)
+	{
+	    TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
+	    TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
+	    TREEVIEW_Invalidate(infoPtr, NULL);
+	}
 	break;
     }