FilesToArray – Read all the files or subdirectories in a directory using API functions

FilesToArray – Read all the files or subdirectories in a directory using API functions

Private Declare Function FindFirstFile Lib "kernel32" Alias "FindFirstFileA" _    (ByVal lpFileName As String, lpFindFileData As WIN32_FIND_DATA) As LongPrivate Declare Function FindNextFile Lib "kernel32" Alias "FindNextFileA" _    (ByVal hFindFile As Long, lpFindFileData As WIN32_FIND_DATA) As LongPrivate Declare Function FindClose Lib "kernel32" (ByVal hFindFile As Long) As _    LongConst MAX_PATH = 260Private Type FILETIME    dwLowDateTime As Long    dwHighDateTime As LongEnd TypePrivate Type WIN32_FIND_DATA    dwFileAttributes As Long    ftCreationTime As FILETIME    ftLastAccessTime As FILETIME    ftLastWriteTime As FILETIME    nFileSizeHigh As Long    nFileSizeLow As Long    dwReserved0 As Long    dwReserved1 As Long    cFileName As String * MAX_PATH    cAlternate As String * 14End Type' Returns a one-based string array containing the files (or directories)' located in the specified path'' the Path argument can contain wildcards, e.g. "C:*.doc")Function FilesToArray(ByVal Path As String, Optional ByVal IncludeDirs As _    Boolean) As String()    Dim lRet As Long    Dim handle As Long    Dim FindData As WIN32_FIND_DATA    Dim FileName As String    Dim fileCount As Long    Dim ok As Boolean    ReDim res(0) As String        ' start the searching, exit if no file matches the spec    handle = FindFirstFile(Path, FindData)    If handle < 0 Then        FilesToArray = res()        Exit Function    End If            Do        ' get this entry's name        FileName = Left$(FindData.cFileName, InStr(FindData.cFileName, _            vbNullChar) - 1)                If (FindData.dwFileAttributes And vbDirectory) = 0 Then            ' this is a file            ok = Not IncludeDirs        ElseIf FileName <> "." And FileName <> ".." Then            ' this is a directory, but not a ./.. entry            ok = IncludeDirs        Else            ' this is a ./.. entry            ok = False        End If                    If ok Then            ' add this entry to the result            fileCount = fileCount + 1            If fileCount > UBound(res) Then                ' make room in the array if necessary                ReDim Preserve res(fileCount + 100) As String            End If            res(fileCount) = FileName        End If        ' read the next file, returns zero when there are no more files        lRet = FindNextFile(handle, FindData)    Loop While lRet    ' stop enumeration    FindClose handle        ' discard unused array items and return to caller    ReDim Preserve res(0 To fileCount) As String    FilesToArray = resEnd Function

See also  5 Tips for Choosing the Right Medical Software for Your Practice

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist