mes-client/NotePad/CustomerControls/AutoButtomRichTextBox.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace NotePad.CustomerControls
{
    public partial class AutoButtomRichTextBox : RichTextBox
    {
        public AutoButtomRichTextBox()
        {
            InitializeComponent();
        }

        protected override CreateParams CreateParams
        {
            get
            {
                CreateParams cp = base.CreateParams;
                cp.ExStyle |= 0x20;
                return cp;
            }
        }
    }
}