Neofriends Authorization (C#)

using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using Authorization;

public partial class frmMain : Form
{
    public frmMain()
    {
        InitializeComponent();
    }

    #region "Authorization"

    private void btnAuthorize_Click(object sender, EventArgs e)
    {
        //Validate that user has entered correct information in textboxes.

        //Use NFAuth's constructor to your full advantage
        NFAuth auth = new NFAuth(txtUsername.Text, txtPassword.Text, PROGRAM_ID, PROGRAM_NAME, this, UpdateSub: Auth_UpdateHandler, AuthorizedSub: Auth_AuthorizedHandler, UnAuthorizedSub: Auth_UnauthorizedHandler, ExceptionSub: Auth_ExceptionHandler);

        //Settings can also be set like this:
        auth.StatusLabel = lblStatus;

        //Authorize asynchronously so it doesn't freeze the GUI
        auth.AuthorizeASync();

        //Disable your authorize button
        btnAuthorize.Enabled = false;
    }

    private void Auth_ExceptionHandler(Exception ex)
    {
        //Handle the exception (stuff like Debug.Print() might help with debugging)
    }

    private void Auth_AuthorizedHandler()
    {
        //Do something when they are authorized
    }

    private void Auth_UnauthorizedHandler()
    {
        btnAuthorize.Enabled = true;
        //Do something for handling unauthorized.
    }

    private void Auth_UpdateHandler()
    {
        //You can either require the user to update before using or just use the outdated version.
    }

    #endregion
}