MFC文件夹对话框

void CPrintPortDlg::OnBnClickedMfcbutton1()
{
CString sFolderPath;
    BROWSEINFO bi;
    char Buffer[MAX_PATH];
    bi.hwndOwner = NULL;
    bi.pidlRoot =NULL;
    bi.pszDisplayName = Buffer;
    bi.lpszTitle = "変換元フォームフォルダの選択";
    bi.ulFlags = BIF_RETURNONLYFSDIRS;
    bi.lpfn = NULL;
    bi.iImage=IDR_MAINFRAME;
    LPITEMIDLIST pIDList = SHBrowseForFolder(&bi);
if (pIDList) {
        SHGetPathFromIDList(pIDList, Buffer);
        sFolderPath = Buffer;
    }
GetDlgItem(IDC_EDIT1)->SetWindowText(sFolderPath);
BrowseDir(sFolderPath,1);
HTREEITEM hItem,hSubItem;
hItem = myTree.InsertItem("Parent1",TVI_ROOT);
hSubItem = myTree.InsertItem("Child1_1",hItem);
hSubItem = myTree.InsertItem("Child1_2",hItem,hSubItem);
LPMALLOC lpMalloc;
    if(FAILED(SHGetMalloc(&lpMalloc))) return;
    lpMalloc->Free(pIDList);
    lpMalloc->Release();
}