diff --git a/src/msw/window.cpp b/src/msw/window.cpp index 67da2efe76..9dc2e5922d 100644 --- a/src/msw/window.cpp +++ b/src/msw/window.cpp @@ -3576,7 +3576,7 @@ wxWindowMSW::MSWOnDrawItem(int WXUNUSED_UNLESS_ODRAWN(id), if ( id == 0 && pDrawStruct->CtlType == ODT_MENU ) { wxMenuItem *pMenuItem = (wxMenuItem *)(pDrawStruct->itemData); - if (!pMenuItem) return false; + wxCHECK_MSG( pMenuItem && pMenuItem->IsKindOf(CLASSINFO(wxMenuItem)), false, _T("MSWOnDrawItem: bad wxMenuItem pointer") );