vs2010复制粘贴

void CjiantiebanDlg::OnBnClickedButton1()
{
    // TODO: 在此添加控件通知处理程序代码
    //复制
    CString str;
    GetDlgItem(IDC_EDIT1)->GetWindowText(str);
    HGLOBAL hClip;
    if (OpenClipboard())
    {
        EmptyClipboard();
        hClip=GlobalAlloc(GMEM_MOVEABLE,str.GetLength()+1);
        char *buff;
        buff=(char*)GlobalLock(hClip);

    //    _tcscpy_s(buff,str.GetLength()+1,str);
        memcpy(buff,str,str.GetLength()+1);
        GlobalUnlock(hClip);
        SetClipboardData(CF_TEXT,hClip);
        CloseClipboard();
        AfxMessageBox(_T("已将数据存入剪贴板"));

    }
}


void CjiantiebanDlg::OnBnClickedButton2()
{
    // TODO: 在此添加控件通知处理程序代码
    //粘贴
    CString str;
    HANDLE hClip;
    if (OpenClipboard())
    {
        hClip=GetClipboardData(CF_TEXT);
        char *buff;
        buff=(char*)GlobalLock(hClip);
        str=buff;
        GlobalUnlock(hClip);
        CloseClipboard();
        GetDlgItem(IDC_EDIT1)->SetWindowText(str);
    }
}

字符集需要设置为多字符集