C#重绘TabControl的Tabpage标签，添加图片及关闭按钮

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;   
  
namespace TabControlTest   
{   
    public partial class Form1 : Form   
    {   
        public Form1()   
        {   
            InitializeComponent();   
        }   
  
        const int CLOSE_SIZE = 15;   
        Bitmap image = new Bitmap("ONE.ico");   
  
  
        private void MainTabControl_DrawItem(object sender, DrawItemEventArgs e)   
        {   
            try  
            {   
                Rectangle myTabRect = this.MainTabControl.GetTabRect(e.Index);   
  
                //先添加TabPage属性      
                e.Graphics.DrawString(this.MainTabControl.TabPages[e.Index].Text   
                , this.Font, SystemBrushes.ControlText, myTabRect.X + 2, myTabRect.Y + 2);   
  
                //再画一个矩形框   
                using (Pen p = new Pen(Color.White))   
                {   
                    myTabRect.Offset(myTabRect.Width - (CLOSE_SIZE + 3), 2);   
                    myTabRect.Width = CLOSE_SIZE;   
                    myTabRect.Height = CLOSE_SIZE;   
                    e.Graphics.DrawRectangle(p, myTabRect);   
  
                }   
  
                //填充矩形框   
                Color recColor = e.State == DrawItemState.Selected ? Color.White : Color.White;   
                using (Brush b = new SolidBrush(recColor))   
                {   
                    e.Graphics.FillRectangle(b, myTabRect);   
                }   
  
                //画关闭符号   
                using (Pen objpen = new Pen(Color.Black))   
                {   
                    //"\"线   
                    Point p1 = new Point(myTabRect.X + 3, myTabRect.Y + 3);   
                    Point p2 = new Point(myTabRect.X + myTabRect.Width - 3, myTabRect.Y + myTabRect.Height - 3);   
                    e.Graphics.DrawLine(objpen, p1, p2);   
  
                    //"/"线   
                    Point p3 = new Point(myTabRect.X + 3, myTabRect.Y + myTabRect.Height - 3);   
                    Point p4 = new Point(myTabRect.X + myTabRect.Width - 3, myTabRect.Y + 3);   
                    e.Graphics.DrawLine(objpen, p3, p4);   
                    ////=============================================   
                    Bitmap bt = new Bitmap(image);   
                    Point p5 = new Point(myTabRect.X - 50, 4);   
                    e.Graphics.DrawImage(bt, p5);   
                    //e.Graphics.DrawString(this.MainTabControl.TabPages[e.Index].Text, this.Font, objpen.Brush, p5);   
                }   
  
  
                //绘制小图标                 
                //==============================================================================   
                //Bitmap bt = new Bitmap("E:\\1\\2.jpg");   
                //Point p5 = new Point(4, 4);   
                ////e.Graphics.DrawImage(bt, e.Bounds);   
                //e.Graphics.DrawImage(bt, p5);   
                //Pen pt = new Pen(Color.Red);   
                ////e.Graphics.DrawString(this.MainTabControl.TabPages[e.Index].Text, this.Font, pt.Brush, e.Bounds);   
                //e.Graphics.DrawString(this.MainTabControl.TabPages[e.Index].Text, this.Font, pt.Brush, p5);   
  
                e.Graphics.Dispose();   
            }   
            catch  
            {   
    
            }   
    
        }   
  
        private void MainTabControl_MouseDown(object sender, MouseEventArgs e)   
        {   
             if (e.Button == MouseButtons.Left)   
             {   
                  int x = e.X, y = e.Y;   
  
                //计算关闭区域      
                 Rectangle myTabRect = this.MainTabControl.GetTabRect(this.MainTabControl.SelectedIndex);   
    
                 myTabRect.Offset(myTabRect.Width - (CLOSE_SIZE + 3), 2);   
                 myTabRect.Width = CLOSE_SIZE;   
                 myTabRect.Height = CLOSE_SIZE;   
    
                 //如果鼠标在区域内就关闭选项卡      
                 bool isClose = x > myTabRect.X && x < myTabRect.Right   
                  && y > myTabRect.Y && y < myTabRect.Bottom;   
    
                 if (isClose == true)   
                 {   
                     this.MainTabControl.TabPages.Remove(this.MainTabControl.SelectedTab);   
                 }   
             }   
    
  
        }   
  
         //初始化页面   
         private void Form1_Load(object sender, EventArgs e)   
         {   
             //清空控件   
             //this.MainTabControl.TabPages.Clear();   
             //绘制的方式OwnerDrawFixed表示由窗体绘制大小也一样   
             this.MainTabControl.DrawMode = TabDrawMode.OwnerDrawFixed;   
             this.MainTabControl.Padding = new System.Drawing.Point(CLOSE_SIZE, CLOSE_SIZE);   
             this.MainTabControl.DrawItem += new DrawItemEventHandler(this.MainTabControl_DrawItem);   
             this.MainTabControl.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MainTabControl_MouseDown);   
         }   
  
         //添加新的tabPage并修改所有tabPage标签上面的图片   
         private void button1_Click(object sender, EventArgs e)   
         {   
             TabPage tabtage = new TabPage();   
             MainTabControl.TabPages.Add(tabtage);   
             MainTabControl.SelectedTab = tabtage;   
             image = new Bitmap("ONE.ico");   
  
  
         }   
         //关闭选中的tabPage   
         private void button2_Click(object sender, EventArgs e)   
         {   
             MainTabControl.TabPages.Remove(MainTabControl.SelectedTab);   
         }   
    }   
}