dirty hack

gistfile1.cpp

    static std::set<plStringBuffer<wchar_t>> bufs;
    plStringBuffer<wchar_t> buf = text.ToWchar();
    bufs.insert(buf);
    TVITEM tvi = {0};
    tvi.mask       = TVIF_TEXT | TVIF_PARAM;
    tvi.pszText    = const_cast<LPWSTR>(buf.GetData());
    tvi.cchTextMax = static_cast<int>(text.GetSize());
    tvi.lParam     = NULL;