pinvoke.net: Edit: kernel32.GetFileInformationByHandleEx

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@pinvoke=http://pinvoke.net/$$$.htm

Summary: The GetFileInformationByHandleEx API

!!!!C# Signature:
        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool GetFileInformationByHandleEx(IntPtr hFile, FILE_INFO_BY_HANDLE_CLASS infoClass, out FILE_ID_BOTH_DIR_INFO dirInfo, uint dwBufferSize);
!!!!VB Signature:
 Declare Function GetFileInformationByHandleEx Lib "kernel32.dll" (TODO) As TODO
!!!!User-Defined Types:
None.

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

!!!!Notes:
http://www.pinvoke.net/default.aspx/Enums/FILE_INFO_BY_HANDLE_CLASS.html#
http://www.pinvoke.net/default.aspx/Structures/FILE_ID_BOTH_DIR_INFO.html
http://www.pinvoke.net/default.aspx/Structures.LargeInteger

!!!!Tips & Tricks:
Please add some!

!!!!Sample Code:
        internal static Int64 GetDirectoryId(string dir)
        {
            var handle = CreateFile(dir, FileAccess.Read, FileShare.Read, IntPtr.Zero, FileMode.Open, 0x02000000 | 0x00000080, IntPtr.Zero);
            var fileStruct = new FILE_ID_BOTH_DIR_INFO();
            GetFileInformationByHandleEx(handle, FILE_INFO_BY_HANDLE_CLASS.FileIdBothDirectoryInfo, out fileStruct, (uint)Marshal.SizeOf(fileStruct));
            CloseHandle(handle);
            var win32Error = Marshal.GetLastWin32Error();
            if (win32Error != 0)
                throw new Win32Exception();

return fileStruct.FileId.QuadPart;
        }

Documentation: GetFileInformationByHandleEx@msdn on MSDN