how to know received mails downloaded from outlook

[kumarraman]

I am using vb.net 2003 ,to develop the programe to download the emails from outlook. its working properly. but i have one problem, whenn the start event run. i donot know when will all the email will be loaded . will any body help me to find out solution for this . following is there my code.
Dim oNS As Outlook.NameSpace
oNS = oApp.GetNamespace("mapi")

oNS.Logon(missing.Value, missing.Value, False, True)
Dim oInbox As Outlook.MAPIFolder
oInbox = oNS.GetDefaultFolder(Outlook.OlDefaultFolders.olFo lderInbox)

Dim myStoreId As String = ""
myStoreId = oInbox.StoreID

Dim oSyncs As Outlook.SyncObjects
Dim oSync As Outlook.SyncObject

' Reference SyncObjects.
oSyncs = oNS.SyncObjects
oSync = oSyncs.Item(System.Configuration.ConfigurationSett ings.AppSettings("OutlookServer"))

' Send and receive.
oSync.Start()
Q : what i do here to know when all mails are downloaded in inbox