Thread question

[fiefie.niles@gmail.com]

I am using a thread. Inside the thread there is a sub ThreadMain. I am
calling the thread from the main program MainForm.
Inside the thread, if I am calling a sub (say doProcess) from the
MainForm, does it mean that doProcess is processed inside or outside
the thread ?

Code from MainForm:
Public Class MainForm
Private Session As ClientSession = Nothing
Private WorkerThread As Threading.Threa d = Nothing

Public Sub ConnectMenu_Cli ck
:
' Create a new instance of the ClientSession object and a
worker
' thread that will handle the socket I/O
Session = New ClientSession
WorkerThread = New Threading.Threa d(AddressOf
Session.ThreadM ain)

Session.ClientF orm = Me

' Initialize the worker thread and start its execution
WorkerThread.Na me = "WorkerThre ad"
WorkerThread.St art()

Code from the thread:
Public Class ClientSession
Public ClientForm As MainForm = Nothing

Public Sub ThreadMain()
:
ClientForm.doPr ocess(strBuffer ) --->will this be executed inside or
outside the thread ?????
:

Thanks.