private void registerMeButton_Click(object sender, EventArgs e)
        {
            if (hostIPAddressTextBoxCreate.Text == "" || portTextBoxCreate.Text == "")
            {
                MessageBox.Show("IP Address and Port mustn't be empty !");

                return;
            }

            String ip        = hostIPAddressTextBoxCreate.Text;
            int    port      = int.Parse(portTextBoxCreate.Text);
            bool   connected = client.Connect(ip, port);

            if (connected)
            {
                if (client.RegisterUser(userTextBox.Text, emailTextBox.Text, passwordTextBox.Text))
                {
                    MessageBox.Show("User successfuly registered !");
                    this.Hide();
                    (new LoginFormUserWindow()).Show();
                }
                else
                {
                    MessageBox.Show("Error registering user !");
                }
            }
            else
            {
                MessageBox.Show("Error connecting to the server !");
            }
        }
        private void logMeInButtonLog_Click(object sender, EventArgs e)
        {
            if (ipAddressTextBoxLog.Text == "" || portTextBoxLog.Text == "")
            {
                MessageBox.Show("IP Address and Port mustn't be empty !");

                return;
            }

            String ip   = ipAddressTextBoxLog.Text;
            int    port = int.Parse(portTextBoxLog.Text);

            bool connected = client.Connect(ip, port);

            if (connected)
            {
                if (client.LoginUser(userNameTextBoxLog.Text, passwordTextBoxLog.Text))
                {
                    MessageBox.Show("User successfuly logged in !");
                    this.Hide();
                    (new ChatWindowClient()).Show();
                }
            }
            else
            {
                MessageBox.Show("Error connecting to the server !");
            }
        }