.

public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbFileInfo, uint uFlags);

.

      ByVal dwFileAttributes As Integer, _

.

      int    dwFileAttributes,

.

      UseFileAttributes= 0x000000010,  

.

        flags = SHGFI.Icon|SHGFI.SmallIcon|SHGFI.UseFileAttributes;

.

        flags = SHGFI.Icon|SHGFI.LargeIcon|SHGFI.UseFileAttributes;

.

        public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint uFlags);

.

    USEFILEATTRIBUTES = &H10

.

        public uint FileAttributes;

.

  <FieldOffset(0)> Public dwFileAttributes As Int32

.

    val mutable FileAttributes:UInt32

.

       public UInt32 dwFileAttributes;

.

    Public dwFileAttributes As UInt32

.

        public uint FileAttributes;

.

       EFileAttributes dwFlagsAndAttributes,

.

        , EFileAttributes.BackupSemantics | EFileAttributes.OpenReparsePoint

.

        public UInt32 FileAttributes;

.

        <FieldOffset(52)> Public FileAttributes As Integer      'DWORD FileAttributes;  

.

    public UInt32 FileAttributes;

.

Summary

Structure used by GetFileAttributesEx API

.

        public FileAttributes dwFileAttributes;

.

   Public dwFileAttributes As FileAttributes

.

    public uint dwFileAttributes;

.

    Public dwFileAttributes As UInteger

.

    Public dwFileAttributes As Integer

.

     IntPtr.Zero, FileMode.Open, FileAttributes.Normal, IntPtr.Zero);

.

        if ((findData.dwFileAttributes & FileAttributes.Directory) != FileAttributes.Directory)

.

        if ((findData.dwFileAttributes & FileAttributes.Directory) != FileAttributes.Directory)

.

Summary

The GetFileAttributesEx API

.

static extern bool GetFileAttributesEx(string lpFileName,

.

static extern bool GetFileAttributesEx(string lpFileName,

.

public static bool GetFileAttributesEx(string lpFileName, out WIN32_FILE_ATTRIBUTE_DATA fileData) {

.

    return GetFileAttributesEx(lpFileName, GET_FILEEX_INFO_LEVELS.GetFileExInfoStandard,

.

if (GetFileAttributesEx(path, GET_FILEEX_INFO_LEVELS.GetFileExInfoStandard, out fileData)){

.

Documentation

[GetFileAttributesEx] on MSDN

.

Summary

The GetFileAttributesEx API

.

static extern bool GetFileAttributesEx(string lpFileName,

.

static extern bool GetFileAttributesEx(string lpFileName,

.

public static bool GetFileAttributesEx(string lpFileName, out WIN32_FILE_ATTRIBUTE_DATA fileData) {

.

    return GetFileAttributesEx(lpFileName, GET_FILEEX_INFO_LEVELS.GetFileExInfoStandard,

.

if (GetFileAttributesEx(path, GET_FILEEX_INFO_LEVELS.GetFileExInfoStandard, out fileData))

.

Documentation

[GetFileAttributesEx] on MSDN

.

Summary

The SetFileAttributes API

.

static extern bool SetFileAttributes(string lpFileName, uint dwFileAttributes);

.

static extern bool SetFileAttributes(

.

     [MarshalAs(UnmanagedType.U4)] FileAttributes dwFileAttributes);

.

You can create this FileAttributes type to go in your class and be used with the alternative signature if you wish (or you can use the System.IO.FileAttributes as displayed in the below example):

.

[Flags] public enum FileAttributes : uint

.

SetFileAttributes("pathname", FileAttributes.System | FileAttributes.Hidden | FileAttributes.Archive);

.

private static extern bool SetFileAttributesW(string lpFileName, FileAttributes dwFileAttributes);

.

public static void SetFileAttributes(String path, FileAttributes dwFileAttributeFlags)

.

      if (!SetFileAttributesW(UnicodeHeader + path, dwFileAttributeFlags))

.

System.IO.File.SetAttributes(String path, System.IO.FileAttributes fileAttributes);

.

Documentation

[SetFileAttributes] on MSDN

.

        public UInt32 FileAttributes;

.

                          ByRef lpOverlap As EFileAttributes) As Int32

.

Summary

This is returned by GetFileAttributes if the function fails

.

       int attributes = GetFileAttributes(path);

.

    public static PropertyKey PKEY_FileAttributes = new PropertyKey( 0xB725F130, 0x47EF, 0x101A, 0xA5, 0xF1, 0x02, 0x60, 0x8C, 0x9E, 0xEB, 0xAC, 13);

.

    public const int SHGFI_USEFILEATTRIBUTES = 0x000000010;     // use passed dwFileAttribute

.

    public const int SHGFI_USEFILEATTRIBUTES = 0x000000010;     // use passed dwFileAttribute

.

     [In] FileAttributes dwAttrFrom,

.

     [In] FileAttributes dwAttrTo

.

     @"c:\a\b\path", FileAttributes.Directory,

.

     @"c:\a\x\y\file", FileAttributes.Normal

.

    public static extern int CeSetFileAttributes(string lpPathName, System.IO.FileAttributes dwAttributes);

.

Declare Function CeSetFileAttributes Lib "rapi.dll" (TODO) As TODO

.

Microsoft doc link: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceactsy/html/cerefCeSetFileAttributesRAPI.asp

.

Documentation

[CeSetFileAttributes] on MSDN

.

            [FieldOffset(  0)] public uint      dwFileAttributes;

.

        Public dwFileAttributes As Integer

.

enum FileAttributes : uint

.

    Enum FileAttributes As UInteger

.

System.IO.FileAttributes

.

    SHGFI_USEFILEATTRIBUTES = 0x000000010,     // use passed dwFileAttribute

.

Summary

Enum used in GetFileAttributesEx API

.

    SHGFI_USEFILEATTRIBUTES = 0x000000010,    

.

    SHGFI_USEFILEATTRIBUTES = &H10

.

public static extern int NtCreateFile(out SafeFileHandle handle, FileAccess access, OBJECT_ATTRIBUTES* objectAttributes, IO_STATUS_BLOCK* ioStatus, ref long allocSize, uint fileAttributes, FileShare share, uint createDisposition, uint createOptions, IntPtr eaBuffer, uint eaLength);

.

        uint fileAttributes,

.

using System.Collections.Generic; // for ParseFileAttributes helper function (List<FileAttributes> only

.

        internal ulong FileAttributes;

.

    public static List<FileAttributes> ParseFileAttributes(ulong fileAttributes) {

.

        List<FileAttributes> listOfFileAttributesPresent = new List<FileAttributes>();

.

        FileAttributes[] allPossibleValues = new FileAttributes[] {        // per definition of FileAttributes

.

            FileAttributes.ReadOnly,

.

            FileAttributes.Hidden,

.

            FileAttributes.System,

.

            FileAttributes.Directory,

.

            FileAttributes.Archive,

.

            FileAttributes.Device,

.

            FileAttributes.Normal,

.

            FileAttributes.Temporary,

.

            FileAttributes.SparseFile,

.

            FileAttributes.ReparsePoint,

.

            FileAttributes.Compressed,

.

            FileAttributes.Offline,

.

            FileAttributes.NotContentIndexed,

.

            FileAttributes.Encrypted,

.

        foreach(FileAttributes currentFileAttribute in allPossibleValues) {

.

            if((fileAttributes & (ulong)currentFileAttribute) != 0) {

.

                listOfFileAttributesPresent.Add(currentFileAttribute);

.

        return listOfFileAttributesPresent;

.

            out DateTime creationTime, out DateTime lastAccessTime, out DateTime lastWriteTime, out DateTime changeTime, out ulong fileAttributes, out string errMsg) {

.

        fileAttributes = 0;

.

                    fileAttributes = fbi.FileAttributes;

.

        FileAttributes fileAttributesBefore = File.GetAttributes(path2file);

.

        Trace.Write("fileAttributesBefore=");

.

        foreach(FileAttributes fa1 in Nt.ParseFileAttributes((ulong)fileAttributesBefore)) {

.

        File.SetAttributes(path2file, FileAttributes.Normal);

.

        ulong fileAttributesAfter;

.

        brc = Nt.GetFourFileTimes(path2file, out creationTime, out lastAccessTime, out lastWriteTime, out changeTime, out fileAttributesAfter, out errMsg);

.

            Trace.Write("fileAttributesAfter=");

.

            foreach(FileAttributes fa1 in Nt.ParseFileAttributes(fileAttributesAfter)) {

.

    //fileAttributesBefore=Archive

.

    //fileAttributesAfter=Normal