I_CHILDRENCALLBACK 64bit failing

以下内容适用于32位模式，但不适用于64位模式，用于TVN_ITEMEXPANDING鼠标单击和键盘事件。

对象.h

afx_msg void OnTvnItemexpandingTreectrl(NMHDR *pNMHDR, LRESULT *pResult);

对象.cpp

    BEGIN_MESSAGE_MAP(Object, CDialogEx)
        ON_NOTIFY(TVN_ITEMEXPANDING, IDC_TREECTRL, OnTvnItemexpandingTreectrl)
    END_MESSAGE_MAP()

void Object::LoadTree()
{
    m_TreeCtrl1.DeleteAllItems();
    HTREEITEM hParentItem = TVI_ROOT;
    std::list<OBJ>::iterator itObj = m_Obj.begin()->m_Obj.begin();
    for (size_t i = 0; i < m_Obj.begin()->m_Obj.size(); i++, ++itObj)
    {
        TVINSERTSTRUCT tvis;
        TVITEM tvItem = { 0 };
        tvItem.mask = LVIF_TEXT | LVIF_PARAM | TVIF_CHILDREN  | TVIF_HANDLE | TVIF_STATE;
        tvItem.cChildren = I_CHILDRENCALLBACK;
        tvItem.pszText = itObj->m_TreeDesc.GetBuffer();
        tvItem.cchTextMax = MAX_ITEMLEN;
        tvItem.lParam = reinterpret_cast<LPARAM>(&*itObj);
        tvis.item = tvItem;
        tvis.hParent = TVI_ROOT;
        tvis.hInsertAfter = TVI_LAST;
        hParentItem = m_TreeCtrl1.InsertItem(&tvis);
        RecurseBuildTree(itObj->m_Obj, m_TreeCtrl1, hParentItem, TVI_LAST);
    }
    hParentItem = m_TreeCtrl1.GetFirstVisibleItem();
    for (size_t i = 0; i < m_Obj.begin()->m_Obj.size(); i++)
    {
        HTREEITEM hNext = hParentItem;
        OBJ *pObjNext = reinterpret_cast<OBJ*>(m_TreeCtrl1.GetItemData(hNext));
        m_TreeCtrl1.SetCheck(hNext, pObjNext->m_bItemDisplayed);
        RecurseTreeSetCheck(m_TreeCtrl1, hParentItem);
        hParentItem = m_TreeCtrl1.GetNextItem(hNext, TVGN_NEXT);
    }
}

    void Object::OnTvnItemexpandingTreectrl(NMHDR *pNMHDR, LRESULT *pResult)
    {
        LPNMTREEVIEW pNMTreeView = reinterpret_cast<LPNMTREEVIEW>(pNMHDR);
        *pResult = 0;
    }

    void ExpandTreeItem(CTreeCtrl &tree, HTREEITEM hItem, UINT nCode)
    {
        HTREEITEM hChild;
        if (tree.ItemHasChildren(hItem))
        {
            tree.Expand(hItem, nCode);
            hChild = tree.GetChildItem(hItem);
            while (hChild)
            {
                ExpandTreeItem(tree, hChild, nCode);
                hChild = tree.GetNextItem(hChild, TVGN_NEXT);
            }
        }
    }

void Object::ToggleItemState(HTREEITEM hti, CTreeCtrl &treectrl, const HTREEITEM hParentNode)
{
    if (hti == hParentNode)
    {
        const int iImage = treectrl.GetItemState(hParentNode, TVIS_STATEIMAGEMASK) >> 12;
        OBJ *pObj = reinterpret_cast<OBJ*>(treectrl.GetItemData(hti));
        pObj->m_bItemDisplayed = (iImage == 1 ? 2 : 1);
    }
    else
    {
        const int iImage = treectrl.GetItemState(hParentNode, TVIS_STATEIMAGEMASK) >> 12;
        treectrl.SetItemState(hti, INDEXTOSTATEIMAGEMASK(iImage == 1 ? 2 : 1), TVIS_STATEIMAGEMASK);
        OBJ *pObj = reinterpret_cast<OBJ*>(treectrl.GetItemData(hti));
        pObj->m_bItemDisplayed = (iImage == 1 ? 2 : 1);
    }
    if (treectrl.ItemHasChildren(hti)) //failing in release mode for root level node.
    {
        HTREEITEM htiChild = treectrl.GetChildItem(hti);
        if (htiChild)
            ToggleItemState(htiChild, treectrl, hParentNode);
        else
            return;
        HTREEITEM htiSibling = treectrl.GetNextSiblingItem(htiChild);
        while (htiSibling)
        {
            ToggleItemState(htiSibling, treectrl, hParentNode);
            htiSibling = treectrl.GetNextSiblingItem(htiSibling);
        }
    }
}

观察：

以下内容在 64 位发布模式下失败，但仅适用于根节点：

if (treectrl.ItemHasChildren(hti))

我有可以手动调用ExpandTreeItem（）和tree的按钮。Expand（） 调用 OnTvnItemexpandingTreectrl（），但在 64 位模式下，鼠标和键盘不会调用TVN_ITEMEXPANDING，对于其他事件，它可以正常工作。

我怀疑这可能与初始化有关

    TVINSERTSTRUCT tvis;
    TVITEM tvItem = { 0 };

但真的不知道我在找什么。

如果我需要发布更多代码，请告诉我。

谢谢