简单控件开发实现图标按钮

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;
using System.IO;

namespace RibbonBarCrl
{
    public partial class ButtonLeftControl : Control
    {
        private Image con = null;

        public ButtonLeftControl()
        {
            InitializeComponent();
            con = new Bitmap(Properties.Resources.ZoomIn1);
            this.MouseEnter += new EventHandler(UCSelectClassifyItem_MouseEnter);
            this.MouseLeave += new EventHandler(UCSelectClassifyItem_MouseLeave);
        }

        void UCSelectClassifyItem_MouseLeave(object sender, EventArgs e)
        {
            con = new Bitmap(Properties.Resources.ZoomIn1);
            Invalidate();
        }

        void UCSelectClassifyItem_MouseEnter(object sender, EventArgs e)
        {
            con = new Bitmap(Properties.Resources.InChange);
            Invalidate();
        }

        protected override void OnPaint(PaintEventArgs pe)
        {
            base.OnPaint(pe);
            Graphics graphics = pe.Graphics;
            graphics.DrawImage(con, new Rectangle(0, 0, this.Width, this.Height));
            graphics.Dispose();
        }
    }
}