<b>VC控件 TreeCtrl 与 ListCtrl 演示</b>

char *pDriveStrings = new char[szAllDriveStrings + sizeof(_T(""))];

GetLogicalDriveStrings(szAllDriveStrings,pDriveStrings);

size_t szDriveString = strlen(pDriveStrings);

while(szDriveString > 0)

{

m_tree.InsertItem(pDriveStrings,hParent);

pDriveStrings += szDriveString + 1;

szDriveString = strlen(pDriveStrings);

}

}

4、添加TVN_EXPANDED消息处理函数,当一项展开时,为其子项添加下一级目录： void CTreeViewDlg::OnItemexpandedTree(NMHDR* pNMHDR, LRESULT* pResult)

{

NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;

// TODO: Add your control notification handler code here

TVITEM item = pNMTreeView->itemNew;

if(item.hItem == m_hRoot)

return;

HTREEITEM hChild = m_tree.GetChildItem(item.hItem);

while(hChild)

{

AddSubDir(hChild);

hChild = m_tree.GetNextItem(hChild,TVGN_NEXT);