Searches the given process's object directory for a given name and, if found, returns the object handle. The calling thread can wait for the object to be cataloged if not present at the time of the call.

Use ntxLookupNtxHandle to get an object's handle so a thread can access the object. You specify the handle of the process whose object directory you want to search, the name of the object, and the amount of time the thread can wait. If the object is not cataloged, the thread goes to sleep by waiting for the specified time or until the name is cataloged, whichever comes first.

Visual Basic:

Function ntxLookupNtxhandle(
  ByVal hRtProcess As Integer,
  ByVal lpszName As String,
  ByVal dwMilliseconds As Integer)
As Integer

Visual C#:

Int32 ntxLookupNtxhandle (
  Int32 hRtProcess,
  String lpszName,
  Int32 dwMilliseconds);

Parameters

hRtProcess

Handle to the RT process whose directory will be examined.

lpszName

String that contains the name.

dwMilliseconds

The number of milliseconds the calling thread waits:

NTX_NO_WAIT	The thread does not wait.
NTX_INFINITE	The thread waits for its request to be fully satisfied.
Any positive integer	Calling thread goes to sleep for this many milliseconds, after which it awakes. Note: The kernel converts milliseconds to high-level ticks.

Return Values

The handle associated with the specified name.

INtimeException Status

E_TIME

One of these is true:

• No object was available during the waiting period specified in dwMilliseconds.
• The thread was not willing to wait, and the entry indicated by lpszName is not in the specified object directory.

E_LIMIT

The specified object directory is full and the object being looked up is not yet cataloged.

E_CONTEXT

The specified process has an object directory of size 0 (zero).

E_EXIST

At least one of these is true:

• hRtProcess (if not a null selector) is not a handle for an existing object.
• The name was found, but the cataloged object has a null handle.

E_TYPE

The process parameter is not a handle for a process.

E_PARAM

lpszName contains a string with a length of 0 (zero) or greater than 12.

E_BAD_ADDR

The pointer to lpszName is invalid.

E_NTX_INTERNAL_ERROR

The DLL could not contact the RT kernel to complete the request.

Requirements

See Also

INtimeDotNet system calls, Object directory system calls