https://git.reactos.org/?p=reactos.git;a=commitdiff;h=bcba9306227ade497e98b…
commit bcba9306227ade497e98b50ff65feac0ae3dca3b
Author:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
AuthorDate: Thu Mar 11 16:55:49 2021 +0900
Commit:     Katayama Hirofumi MZ <katayama.hirofumi.mz(a)gmail.com>
CommitDate: Thu Mar 11 16:56:01 2021 +0900
    [BROWSEUI] Fix CAutoComplete::OnMeasureItem assertion
    CORE-17505
---
 dll/win32/browseui/CAutoComplete.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/dll/win32/browseui/CAutoComplete.cpp b/dll/win32/browseui/CAutoComplete.cpp
index 9bb6405d594..b5dfa888abd 100644
--- a/dll/win32/browseui/CAutoComplete.cpp
+++ b/dll/win32/browseui/CAutoComplete.cpp
@@ -1781,7 +1781,8 @@ LRESULT CAutoComplete::OnMeasureItem(UINT uMsg, WPARAM wParam,
LPARAM lParam, BO
     ATLASSERT(pMeasure != NULL);
     if (pMeasure->CtlType != ODT_LISTVIEW)
         return FALSE;
-
+    if (!m_hwndList)
+        return FALSE;
     ATLASSERT(m_hwndList.GetStyle() & LVS_OWNERDRAWFIXED);
     pMeasure->itemHeight = m_hwndList.m_cyItem; // height of item
     return TRUE;