[ObsoleteAttribute("This method is obsolete in .NET 4.5+. Use IdleAsync instead.")]
public IAsyncResult BeginIdle(
	AsyncCallback callback,
	Object state
)

<ObsoleteAttribute("This method is obsolete in .NET 4.5+. Use IdleAsync instead.")>
Public Function BeginIdle ( 
	callback As AsyncCallback,
	state As Object
) As IAsyncResult

// To use the code below, import MailBee namespaces at the top of your code
using MailBee;
using MailBee.ImapMail;

// Put the code below inside your class.

// Imap object declared global because it's accessed from several methods.
Imap imp = null;

bool started = false;

// Monitor folder changes and save them in the log file.
private void imp_MessageStatus(object sender, ImapMessageStatusEventArgs e)
{
    ((Imap)sender).Log.WriteLine("Got " + e.StatusID + " status update");
}

// Start/stop idling.
// Add button1 on the form to make this sample working.
private void button1_Click(object sender, System.EventArgs e)
{
    if (started)
    {
        // Stop idling.
        imp.StopIdle();
        imp.EndIdle();

        // Disconnect from the server and revert to the original state.
        imp.Disconnect();
        button1.Text = "Go idle";
        started = false;
    }
    else
    {
        started = true;

        imp = new Imap();

        // Enable logging into a file.
        imp.Log.Filename = @"C:\Temp\log.txt";
        imp.Log.Enabled = true;
        imp.Log.Clear();

        // Connect to the server and check if IDLE is supported.
        imp.Connect("mail.domain.com");
        if (imp.GetExtension("IDLE") == null)
        {
            MessageBox.Show("IDLE not supported");
            imp.Disconnect();
            started = false;
        }
        else
        {
            // Login and select inbox.
            imp.Login("jdoe", "secret");
            imp.SelectFolder("Inbox");

            // Attach event handler.
            imp.MessageStatus +=new ImapMessageStatusEventHandler(imp_MessageStatus);

            button1.Text = "Stop idle";

            // Go idle in the background.
            imp.BeginIdle(null, null);
        }
    }
}

// Finish idling if the user closes the application.
// To make this method work, attach it to Closing event of the form.
private void Form1_Closing(object sender,
    System.ComponentModel.CancelEventArgs e)
{
    if (imp != null && imp.IsBusy)
    {
        imp.StopIdle();
        imp.EndIdle();
        imp.Disconnect();
    }
}

' To use the code below, import MailBee namespaces at the top of your code
Imports MailBee
Imports MailBee.ImapMail

' Put the code below inside your class.

' Imap object declared global because it's accessed from several methods.
Dim imp As Imap = Nothing

Dim started As Boolean = False

' Monitor folder changes and save them in the log file.
Private Sub imp_MessageStatus(ByVal sender As Object, ByVal e As ImapMessageStatusEventArgs)
    CType(sender, Imap).Log.WriteLine("Got " & e.StatusID & " status update")
End Sub

' Start/stop idling.
' Add button1 on the form to make this sample working.
Private Sub button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
    If started Then
        ' Stop idling.
        imp.StopIdle()
        imp.EndIdle()

        ' Disconnect from the server and revert to the original state.
        imp.Disconnect()
        button1.Text = "Go idle"
        started = False
    Else
        started = True

        imp = New Imap

        ' Enable logging into a file.
        imp.Log.Filename = "C:\Temp\log.txt"
        imp.Log.Enabled = True
        imp.Log.Clear()

        ' Connect to the server and check if IDLE is supported.
        imp.Connect("mail.domain.com")
        If imp.GetExtension("IDLE") Is Nothing Then
            MsgBox("IDLE not supported")
            imp.Disconnect()
            started = False
        Else
            ' Login and select inbox.
            imp.Login("jdoe", "secret")
            imp.SelectFolder("Inbox")

            ' Attach event handler.
            AddHandler imp.MessageStatus, AddressOf imp_MessageStatus

            button1.Text = "Stop idle"

            ' Go idle in the background.
            imp.BeginIdle(Nothing, Nothing)
        End If
    End If
End Sub

' Finish idling if the user closes the application.
' To make this method work, attach it to Closing event of the form.
Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs)
    If Not imp Is Nothing And imp.IsBusy Then
        imp.StopIdle()
        imp.EndIdle()
        imp.Disconnect()
    End If
End Sub