求索阁

1.MFC获取文件夹路径信息

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CString GetPath() 
{ 
CString strPath = ""; 
BROWSEINFO bInfo; 
ZeroMemory(&bInfo, sizeof(bInfo)); 
bInfo.hwndOwner = m_hWnd; 
bInfo.lpszTitle = _T("请选择路径: "); 
bInfo.ulFlags = BIF_RETURNONLYFSDIRS | BIF_EDITBOX;     
  
LPITEMIDLIST lpDlist; //用来保存返回信息的IDList 
lpDlist = SHBrowseForFolder(&bInfo) ; //显示选择对话框 
if(lpDlist != NULL)  //用户按了确定按钮 
{ 
  TCHAR chPath[MAX_PATH]; //用来存储路径的字符串 
  SHGetPathFromIDList(lpDlist, chPath);//把项目标识列表转化成字符串 
  strPath = chPath; //将TCHAR类型的字符串转换为CString类型的字符串 
} 
return strPath; 
} 
２.获取文件夹下指定格式的文件，用CListCtrl控件输出其文件名及文件大小
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void AddFolder(CString csFolder) 
{ 
    if (csFolder[csFolder.GetLength() - 1] != '\\') csFolder += _T("\\"); 
    csFolder += _T("*.*"); 
    CFileFind ff; 
    BOOL bFind = ff.FindFile(csFolder); 
    while (bFind) 
    { 
        bFind = ff.FindNextFile(); 
        if (ff.IsDots()) continue; 
        if (ff.IsDirectory()) 
        { 
            AddFolder(ff.GetFilePath()); 
            continue; 
        } 
        CString csFile = ff.GetFilePath(); 
        csFile.MakeLower(); 
        int nFileType = GetFileType(csFile); 
        if (nFileType == -1) continue; 
        LVFINDINFO info; 
        info.flags = LVFI_STRING; 
        info.psz = csFile; 
        if (m_cFiles.FindItem(&info, -1) < 0) 
            m_cFiles.InsertItem(0, (LPCTSTR)csFile); 
 
        double size = (double)ff.GetLength()/1024.0f; 
        CString strFileSize; 
        strFileSize.Format(_T("%.1lf"), size); 
        m_cFiles.SetItemText(m_cFiles.FindItem(&info, -1), 3, (LPCTSTR)strFileSize); 
    } 
} 
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int GetFileType(const CString &csFile) const 
{ 
    int nType = -1; 
    CString csExt = csFile.Right(4); 
    if (csExt == _T(".doc")) 
        nType = 0x0101; 
    else if (csExt == _T(".rtf")) 
        nType = 0x0103; 
    else if (csExt == _T(".xls")) 
        nType = 0x0201; 
    else if (csExt == _T(".ppt")) 
        nType = 0x0301; 
    if (nType == -1) 
    { 
        csExt = csFile.Right(5); 
        if (csExt == _T(".docx")) 
            nType = 0x0102; 
        else if (csExt == _T(".xlsx")) 
            nType = 0x0202; 
        else if (csExt == _T(".pptx")) 
            nType = 0x0302; 
    } 
    return nType; 
}