Re: [PATCH v9 0/2] MR6218: comctl32/treeview: Allow treeview parent to deny treeview expansion.

[Zhiyi Zhang (＠zhiyi)]

Zhiyi Zhang (@zhiyi) commented about dlls/comctl32/tests/treeview.c:
>  DestroyWindow(hTree);
>
> - /* check that expansion can be denied by parent */
> - hTree = create_treeview_control(0);
> - fill_tree(hTree);
> -
> - g_reject_tvn_itemexpanding = 1;
> - memset(&item, 0, sizeof(item));
> - item.mask = TVIF_STATE;
> - item.hItem = hRoot;
> - *((HTREEITEM *)&rc) = item.hItem;
> -
> - /* Simulate the double-click */

I think using the TVM_EXPAND message to expand or collapse the item is more reliable than sending a click. Also, please test that TVN_ITEMEXPANDINGA returning TRUE can also prevent the item from collapsing.