下面代码怎么得不到为结点设置的值'F0'呢?HTREEITEM hItem;
CString str;
str.Format("%s","F0");
hItem=m_tree.InsertItem("Root",TVI_ROOT);
m_tree.SetItemData(hItem,(DWORD)&str);
char* p=new char[100];
p=(char*)m_tree.GetItemData(hItem);
AfxMessageBox((LPCTSTR)p);
CString str;
str.Format("%s","F0");
hItem=m_tree.InsertItem("Root",TVI_ROOT);
m_tree.SetItemData(hItem,(DWORD)&str);
char* p=new char[100];
p=(char*)m_tree.GetItemData(hItem);
AfxMessageBox((LPCTSTR)p);
HTREEITEM hCurrentRoot = m_TreeMap.GetRootItem(hCurrent);
CString a;
a = m_Tree.GetItemText(hCurrentRoot);
HTREEITEM hItem;
HTREEITEM hTreeItem1;
HTREEITEM hTreeItem2;
for (int i=0;i < 5;i++)
{
str.Format(TEXT("item %d"), i);
hItem = m_Tree.InsertItem(str);
hTreeItem1=m_Tree.InsertItem("Item1",0, 1, hItem, TVI_LAST);
hTreeItem2=m_Tree.InsertItem("Item2",0, 1, hItem, TVI_LAST); if (hItem != NULL)
{
m_Tree.SetItemData(hItem, (DWORD) hItem);
}
} HTREEITEM hCurrent = m_Tree.GetSelectedItem();
HTREEITEM hCurrentRoot = m_Tree.GetParentItem(hCurrent);
CString a;
a = m_Tree.GetItemText(hCurrentRoot);
AfxMessageBox(a);