VB.NET

End IMAP IDLE Mode

Demonstrates the Chilkat Imap.IdleDone method, which ends IDLE mode by sending the protocol's DONE continuation. It takes no arguments. The authenticated connection remains open and usable afterward.

Background: While IDLE is active the connection is dedicated to receiving push notifications, so any command that needs to talk to the server — fetching a message, setting a flag — must wait until IDLE ends. IdleDone cleanly exits IDLE without dropping the login, so the same connection can immediately be reused. Calling it when IDLE is not active fails.

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Dim success As Boolean = False

'  Demonstrates the Imap.IdleDone method, which ends IMAP IDLE mode by sending the DONE
'  continuation.  It takes no arguments.  The authenticated connection remains open and usable.

Dim imap As New Chilkat.Imap

imap.Ssl = True
imap.Port = 993

success = imap.Connect("imap.example.com")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If

success = imap.Login("user@example.com","myPassword")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


success = imap.SelectMailbox("Inbox")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


success = imap.IdleStart()
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


'  Check once for any updates that arrived.
Dim timeoutMs As Integer = 5000
Dim updates As String = imap.IdleCheck(timeoutMs)
If (imap.LastMethodSuccess = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If

Debug.WriteLine(updates)

'  End IDLE so that ordinary IMAP commands can be sent again on the same connection.
success = imap.IdleDone()
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If

Debug.WriteLine("IDLE mode ended.")

success = imap.Disconnect()
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If