File Management Functions


FindNextFile Function

Continues a file search from a previous call to the FindFirstFile or FindFirstFileEx function.

Syntax

C++ 
BOOL WINAPI FindNextFile(
  __in   HANDLE hFindFile,
  __out  LPWIN32_FIND_DATA lpFindFileData
);

Parameters

hFindFile [in]

The search handle returned by a previous call to the FindFirstFile or FindFirstFileEx function.

lpFindFileData [out]

A pointer to the WIN32_FIND_DATA structure that receives information about the found file or subdirectory.

The structure can be used in subsequent calls to FindNextFile to indicate from which file to continue the search.

Return Value

If the function succeeds, the return value is nonzero and the lpFindFileData parameter contains information about the next file or directory found.

If the function fails, the return value is zero and the contents of lpFindFileData are indeterminate. To get extended error information, call the GetLastError function.

If the function fails because no more matching files can be found, the GetLastError function returns ERROR_NO_MORE_FILES.

Remarks

This function uses the same search filters that were used to create the search handle passed in the hFindFile parameter. For additional information, see FindFirstFile and FindFirstFileEx.

The order in which the search returns the files, such as alphabetical order, is not guaranteed, and is dependent on the file system. If the data must be sorted, the application must do the ordering after obtaining all the results.

Note  In rare cases, file attribute information on NTFS file systems may not be current at the time you call this function. To be assured of getting the current NTFS file system file attributes, call the GetFileInformationByHandle function.

The order in which this function returns the file names is dependent on the file system type. With the NTFS file system and CDFS file systems, the names are usually returned in alphabetical order. With FAT file systems, the names are usually returned in the order the files were written to the disk, which may or may not be in alphabetical order. However, as stated previously, these behaviors are not guaranteed.

If the path points to a symbolic link, the WIN32_FIND_DATA buffer contains information about the symbolic link, not the target.

Transacted Operations

If there is a transaction bound to the file enumeration handle, then the files that are returned are subject to transaction isolation rules.

Examples

For an example, see Listing the Files in a Directory.

Requirements

Minimum supported client

Windows 2000 Professional

Minimum supported server

Windows 2000 Server

Header

WinBase.h (include Windows.h)

Library

Kernel32.lib

DLL

Kernel32.dll

Unicode and ANSI names

FindNextFileW (Unicode) and FindNextFileA (ANSI)

See Also

File Management Functions
FindClose
FindFirstFile
FindFirstFileEx
GetFileAttributes
SetFileAttributes
Symbolic Links
WIN32_FIND_DATA

 

 

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Build date: 2/4/2010

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Community Content

dmex
vb.net syntax
<DllImport("kernel32.dll", CharSet:=CharSet.Unicode, SetLastError:=True)> _
Public Shared Function FindNextFile(<[In]> ByVal hFindFile As SafeFileHandle, <Out> ByRef lpFindFileData As WIN32_FIND_DATA) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function
Tags :

dmex
C# syntax
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("kernel32.dll", CharSet=CharSet.Unicode, SetLastError=true)]
internal static extern bool FindNextFile([In] SafeFileHandle hFindFile, out WIN32_FIND_DATA lpFindFileData);
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Anthony_P
WIN32_FIND_DATA to be used in subsequent calls?
The article states:
"The structure can be used in subsequent calls to FindNextFile to indicate from which file to continue the search."

How is this possible? There is no mention of the function reading from lpFindFileData, and the parameter is marked [out].
Tags :

almend
SafeFileHandle Structure
      Imports Microsoft.Win32.SafeHandles

In the top of thee code. Furthermore:

    <Serializable(), StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Auto)> _
            Structure WIN32_FIND_DATA
        Public dwFileAttributes As IO.FileAttributes
        Public ftCreationTime As FILETIME
        Public ftLastAccessTime As FILETIME
        Public ftLastWriteTime As FILETIME
        Public nFileSizeHigh As Integer
        Public nFileSizeLow As Integer
        Public dwReserved0 As Integer
        Public dwReserved1 As Integer
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=260)> _
          Public cFileName As String
        <MarshalAs(UnmanagedType.ByValTStr, SizeConst:=14)> _
            Public cAlternate As String
    End Structure

    Structure FILETIME
        Public dwLowDateTime As Integer
        Public dwHighDateTime As Integer
    End Structure

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