user32/listbox: Use ULONG_PTR instead of DWORD when retrieving text without HAS_STRINGS.

dlls/user32/listbox.c

@@ -799,8 +799,8 @@ static LRESULT LISTBOX_GetText( LB_DESCR *descr, INT index, LPWSTR buffer, BOOL
         __ENDTRY
     } else {
         if (buffer)
-            *((LPDWORD)buffer)=*(LPDWORD)(&descr->items[index].data);
-        len = sizeof(DWORD);
+            *((ULONG_PTR *)buffer) = descr->items[index].data;
+        len = sizeof(ULONG_PTR);
     }
     return len;
 }
@@ -2707,7 +2707,7 @@ LRESULT ListBoxWndProc_common( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam
             SetLastError(ERROR_INVALID_INDEX);
             return LB_ERR;
         }
-        if (!HAS_STRINGS(descr)) return sizeof(DWORD);
+        if (!HAS_STRINGS(descr)) return sizeof(ULONG_PTR);
         if (unicode) return strlenW( descr->items[wParam].str );
         return WideCharToMultiByte( CP_ACP, 0, descr->items[wParam].str,
                                     strlenW(descr->items[wParam].str), NULL, 0, NULL, NULL );

dlls/user32/tests/listbox.c

@@ -2091,12 +2091,10 @@ static void test_LBS_NODATA(void)
         ret = SendMessageA(listbox, LB_SETITEMDATA, valid_idx[i], 42);
         ok(ret == TRUE, "Unexpected return value %d.\n", ret);
         ret = SendMessageA(listbox, LB_GETTEXTLEN, valid_idx[i], 0);
-    todo_wine_if(sizeof(void *) == 8)
         ok(ret == sizeof(data), "Unexpected return value %d.\n", ret);
 
         memset(&data, 0xee, sizeof(data));
         ret = SendMessageA(listbox, LB_GETTEXT, valid_idx[i], (LPARAM)&data);
-    todo_wine_if(sizeof(void *) == 8)
         ok(ret == sizeof(data), "Unexpected return value %d.\n", ret);
     todo_wine
         ok(!memcmp(&data, &zero_data, sizeof(data)), "Unexpected item data.\n");