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 WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            SetStyle(ControlStyles.OptimizedDoubleBuffer, true); //默认启动双缓冲
            this.SetStyle(ControlStyles.DoubleBuffer, true);
            this.SetStyle(ControlStyles.UserPaint, true);
            this.SetStyle(ControlStyles.ResizeRedraw, true);
            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true); // 禁止擦除背景.


            haha = new Bitmap(panel1.Width, panel1.Height);
            g = Graphics.FromImage(haha);

            pang = panel1.CreateGraphics();
        }
        Graphics g;
        int x = 0;
        Image haha;
        Graphics pang;//panel1
        
        private void timer1_Tick(object sender, EventArgs e)
        {
            x += 3;
            timer1.Interval = 1;
            Invalidate();
            Draw();
        }

        private void Draw()
        {
            using (Graphics g = Graphics.FromImage(haha))
            {
                g.Clear(Color.White);
                g.DrawImage(Properties.Resources._2, -x, 100);
                g.DrawImage(Properties.Resources._2, x, 100);
                g.DrawImage(Properties.Resources._2, x, 0);
                g.DrawImage(Properties.Resources._2, -x, -x);
                g.Dispose();
            }
        }
        protected override void OnPaint(PaintEventArgs e)
        {
            Draw();
            pang.DrawImage(haha, Point.Empty);
        }
    }
}