Akihiro Sagawa : comctl32/listbox: Fix redraw after LB_SETCOUNT message.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a056663efb47a5346abc4c1c69b31fbb141ff552
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=a056663efb47a5346abc4c1c69b31fbb141ff552

Author: Akihiro Sagawa <sagawa.aki at gmail.com>
Date:   Thu Aug 12 21:17:45 2021 +0900

comctl32/listbox: Fix redraw after LB_SETCOUNT message.

Signed-off-by: Akihiro Sagawa <sagawa.aki at gmail.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/comctl32/listbox.c       | 2 ++
 dlls/comctl32/tests/listbox.c | 1 -
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/comctl32/listbox.c b/dlls/comctl32/listbox.c
index f9283f45282..1edb233f104 100644
--- a/dlls/comctl32/listbox.c
+++ b/dlls/comctl32/listbox.c
@@ -1830,6 +1830,8 @@ static LRESULT LISTBOX_SetCount( LB_DESCR *descr, UINT count )
     if (!resize_storage(descr, count))
         return LB_ERRSPACE;
     descr->nb_items = count;
+    if (descr->style & LBS_NOREDRAW)
+        descr->style |= LBS_DISPLAYCHANGED;
 
     if (count)
     {
diff --git a/dlls/comctl32/tests/listbox.c b/dlls/comctl32/tests/listbox.c
index 5e7f53289fd..bc3e837402f 100644
--- a/dlls/comctl32/tests/listbox.c
+++ b/dlls/comctl32/tests/listbox.c
@@ -569,7 +569,6 @@ static void test_ownerdraw(void)
         got_drawitem = 0;
         ret = RedrawWindow(hLB, NULL, 0, RDW_UPDATENOW);
         ok(ret, "RedrawWindow failed\n");
-        todo_wine_if(testcase[i].message == LB_SETCOUNT)
         ok(got_drawitem == testcase[i].drawitem, "expected %u, got %u\n", testcase[i].drawitem, got_drawitem);
 
         DestroyWindow(hLB);