class RdpClient
{
    #region "Fields"
    private string _server, _username, _password;
    public AxMSTSCLib.AxMsTscAxNotSafeForScripting _rdp = new AxMSTSCLib.AxMsTscAxNotSafeForScripting();
    #endregion
    #region "Encapsulation"
    public string Server { get => _server; set => _server = value; }
    public string Username { get => _username; set => _username = value; }
    public string Password { get => _password; set => _password = value; }
    #endregion
    #region "Events"
    public delegate void OnErrorHandler(string server);
    public delegate void OnSuccessHandler(string server, string username, string password);
    public delegate void OnConnectedHandler(string server);
    public event OnErrorHandler OnError;
    public event OnSuccessHandler OnSuccess;
    public event OnConnectedHandler OnConnected;
    #endregion
    #region "Methods"
    public RdpClient(string server, string username, string password)
    {
        Server = server;
        Username = username;
        Password = password;

        _rdp.CreateControl();
        ((IMsRdpClientAdvancedSettings5)_rdp.AdvancedSettings).BitmapVirtualCache32BppSize = 48;
        ((IMsRdpClientAdvancedSettings5)_rdp.AdvancedSettings).EnableWindowsKey = 1;
        IMsTscNonScriptable _rdpPassword = (IMsTscNonScriptable)_rdp.GetOcx();
        _rdp.Server = Server;
        _rdp.UserName = Username;
        _rdpPassword.ClearTextPassword = Password;
        _rdp.OnLoginComplete += _rdp_OnLoginComplete;
        _rdp.OnConnected += _rdp_OnConnected;
        _rdp.OnLogonError += _rdp_OnLogonError;
        _rdp.OnFatalError += _rdp_OnFatalError;
    }
    public void Connect()
    {
        _rdp.Connect();
    }
    #endregion
    #region "Inner Events"
    private void _rdp_OnFatalError(object sender, AxMSTSCLib.IMsTscAxEvents_OnFatalErrorEvent e)
    {
        OnError?.Invoke(Server);
    }

    private void _rdp_OnLogonError(object sender, AxMSTSCLib.IMsTscAxEvents_OnLogonErrorEvent e)
    {
        OnError?.Invoke(Server);
    }

    private void _rdp_OnConnected(object sender, EventArgs e)
    {
        OnConnected?.Invoke(Server);
    }

    private void _rdp_OnLoginComplete(object sender, EventArgs e)
    {
        OnSuccess?.Invoke(Server, Username, Password);
    }
    #endregion
}