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c++mfcpathdirectory
Geo
Geo

Reputation: 96867

MFC Equivalent to Java File#isDirectory()

Is there an equivalent to the Java File method isDirectory() in MFC? I tried using this :


static bool isDirectory(CString &path) {
  return GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY;   
}

but it doesn't seem to work.

Upvotes: 1

Views: 1436

Answers (4)

BrianK
BrianK

Reputation: 2705

Its not MFC, but I use this:

bool IsValidFolder(LPCTSTR pszPath)
{
    const DWORD dwAttr = ::GetFileAttributes(pszPath);
    if(dwAttr != 0xFFFFFFFF)
    {
        if((FILE_ATTRIBUTE_DIRECTORY & dwAttr) &&
           0 != _tcscmp(_T("."), pszPath) &&
           0 != _tcscmp(_T(".."), pszPath))
        {
            return true;
        }
    }

    return false;
}

Upvotes: 1

Panic
Panic

Reputation: 262

MFC solution as requested: a_FSItem path ot the item to test (examine the CFile::GetStatus() for the needed requirements).

  CFileStatus t_aFSItemStat;
  CFile::GetStatus( a_FSItem, t_aFSItemStat );

  if ( ( t_aFSItemStat.m_attribute & CFile::directory )
    return true;

  return false;

if you wish to include a volume root as a valid directory just add it to the test

t_aFSItemStat.m_attribute & CFile::volume

Upvotes: 1

bgee
bgee

Reputation: 989

Sorry for possibly "inconsistency" of answer to question but may be you'll see it useful because anytime I need something like this in Windows I am NOT using MFC but regular Windows API: 

//not completely tested but after some debug I'm sure it'll work
bool IsDirectory(LPCTSTR sDirName)
{
    //First define special structure defined in windows
    WIN32_FIND_DATA findFileData; ZeroMemory(&findFileData, sizeof(WIN32_FIND_DATA));
    //after that call WinAPI function finding file\directory
    //(don't forget to close handle after all!)
    HANDLE hf = ::FindFirstFile(sDirName, &findFileData);
    if (hf  ==  INVALID_HANDLE_VALUE) //also predefined value - 0xFFFFFFFF
    return false;
    //closing handle!
    ::FindClose(hf);
    // true if directory flag in on
    return (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
}

Upvotes: 2

Byron Whitlock
Byron Whitlock

Reputation: 53901

CFileFind::IsDirectory()

http://msdn.microsoft.com/en-us/library/scx99850(VS.80).aspx

EDIT:

  #include <afxwin.h>
  #include <iostream>

  using namespace std;

  CFileFind finder;

  fileName += _T("c:\\aDirName");
  if (finder.FindFile(fileName))
  {
        if (finder.FindNextFIle())
        {            
              if (finder.IsDirectory())
              {
                    // Do directory stuff...
              }
        }
  }

If you change filename to have wildcards, you can do a

  while(finder.findNextFile()) {...

to get all matching files.

Upvotes: 4

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