[2/4] comctl32/listview: Handle NULL lParam in LVM_SETITEMSTATE

[Nikolay Sivov]

Changelog:
    - Handle NULL lParam in LVM_SETITEMSTATE

>From 26f71f7c8bade386bdfc902c91cee3490e74eb83 Mon Sep 17 00:00:00 2001
From: Nikolay Sivov <bunglehead at gmail.com>
Date: Thu, 23 Jul 2009 23:46:22 +0400
Subject: Handle NULL lParam in LVM_SETITEMSTATE

---
 dlls/comctl32/listview.c       |    1 +
 dlls/comctl32/tests/listview.c |    4 ++++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/dlls/comctl32/listview.c b/dlls/comctl32/listview.c
index 73781b2..05c033e 100644
--- a/dlls/comctl32/listview.c
+++ b/dlls/comctl32/listview.c
@@ -10653,6 +10653,7 @@ LISTVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
     return LISTVIEW_SetItemPosition(infoPtr, (INT)wParam, *((POINT*)lParam));
 
   case LVM_SETITEMSTATE:
+    if (lParam == 0) return FALSE;
     return LISTVIEW_SetItemState(infoPtr, (INT)wParam, (LPLVITEMW)lParam);
 
   case LVM_SETITEMTEXTA:
diff --git a/dlls/comctl32/tests/listview.c b/dlls/comctl32/tests/listview.c
index 9e92202..bf87bca 100644
--- a/dlls/comctl32/tests/listview.c
+++ b/dlls/comctl32/tests/listview.c
@@ -1963,6 +1963,10 @@ static void test_multiselect(void)
     item_count = (int)SendMessage(hwnd, LVM_GETITEMCOUNT, 0, 0);
     expect(items,item_count);
 
+    /* try with NULL pointer */
+    r = SendMessageA(hwnd, LVM_SETITEMSTATE, 0, (LPARAM)NULL);
+    expect(FALSE, r);
+
     /* select all, check notifications */
     ListView_SetItemState(hwnd, -1, 0, LVIS_SELECTED);
 
-- 
1.5.6.5