Gmail en c# Part 1

Elementos que vamos a necesitar;

Formulario con nombre Login.cs

Código del programa;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace GMail

{

    public partial class Login : Form

    {

        public Login()

        {

            InitializeComponent();

            this.txtUserName.Text = Properties.Settings.Default.Username;

            this.txtPassWord.Text = Properties.Settings.Default.PassWord;

        }

        private void btnOK_Click(object sender, EventArgs e)

        {

            Properties.Settings.Default.Username = this.txtUserName.Text;

            Properties.Settings.Default.PassWord = this.txtPassWord.Text;

            Properties.Settings.Default.Save();

            this.Close();

        }

        private void btnClose_Click(object sender, EventArgs e)

        {

            Application.ExitThread();

        }

        private void txtPassWord_TextChanged(object sender, EventArgs e)

        {

            btnOK.Enabled = true;

        }

        private void Login_Load(object sender, EventArgs e)

        {

        }

    }

}

parte 2

http://profejoseprogramacionencsharp.blogspot.mx/2016/02/gmail-en-c-part-2.html