Undocumented functions of NTDLL

2OOO, 21 December

NTSYSAPI 
NTSTATUS
NTAPI


NtQueryDirectoryObject(



  IN HANDLE               DirectoryObjectHandle,
  OUT POBJDIR_INFORMATION DirObjInformation,
  IN ULONG                BufferLength,
  IN BOOLEAN              GetNextIndex,
  IN BOOLEAN              IgnoreInputIndex,
  IN OUT PULONG           ObjectIndex,
  OUT PULONG              DataWritten OPTIONAL );

DirectoryObjectHandle

Handle to Directory Object opened with DIRECTORY_QUERY access.

DirObjInformation

Pointer to OBJDIR_INFORMATION structure. Warning: structure has variable length dependly to length of object name.
To test for required length of buffer use DataWritten parameter.

BufferLength

Length of DirObjInformation buffer.

GetNextIndex

Decide of ObjectIndex parameter usage on output.
  If FALSE:       ObjectIndex is number of object in Object Directory.
  If TRUE:        ObjectIndex is index of next object to quered object (see below) in Object Directory.

IgnoreInputIndex

Decide how to use ObjectIndex on function input.
  If FALSE:       ObjectIndex point to ULONG index of object in Object Directory.
  If TRUE:        ObjectIndex input value is ignored. Function always return informations about first object in Object Directory.

ObjectIndex

Pointer to ULONG value described above.

DataWritten

Pointer to ULONG value receiving required / written buffer size. This parameter is optional.

Documented by:

Tomasz Nowak

Library: ntdll.lib

NtCreateDirectoryObject

NtOpenDirectoryObject

OBJDIR_INFORMATION