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;
}
