Winform 显示Gif图片

代码如下：

 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.Diagnostics;

 namespace DysncPicTest
 {
     public partial class Form1 : Form
     {
         private Image m_imgImage = null;
         private EventHandler m_evthdlAnimator = null;
         public Form1()
         {
             InitializeComponent();
             this.SetStyle(ControlStyles.UserPaint, true);
             this.SetStyle(ControlStyles.DoubleBuffer, true);
             this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);

             m_evthdlAnimator = new EventHandler(OnImageAnimate);
             Debug.Assert(m_evthdlAnimator != null);
          // http://www.cnblogs.com/sosoft/
         }

         protected override void OnPaint(PaintEventArgs e)
         {
             base.OnPaint(e);
             if (m_imgImage != null)
             {
                 UpdateImage();
                 e.Graphics.DrawImage(m_imgImage, new Rectangle(, , m_imgImage.Width, m_imgImage.Height));
             }
         }

         protected override void OnLoad(EventArgs e)
         {
             base.OnLoad(e);
             m_imgImage = Image.FromFile("1.gif"); // 加载测试用的Gif图片
             BeginAnimate();
         }

         private void Form1_FormClosing(object sender, FormClosingEventArgs e)
         {
              if (m_imgImage != null)
             {
                 StopAnimate();
                 m_imgImage = null;
             }
         }

         private void BeginAnimate()
         {
            if (m_imgImage == null)
                 return;

            if (ImageAnimator.CanAnimate(m_imgImage))
            {
                 ImageAnimator.Animate(m_imgImage,m_evthdlAnimator);
            }
         }

         private void StopAnimate()
         {
             if (m_imgImage == null)
                 return;

             if (ImageAnimator.CanAnimate(m_imgImage))
             {
                 ImageAnimator.StopAnimate(m_imgImage,m_evthdlAnimator);
             }
         }

         private void UpdateImage()
         {
             if (m_imgImage == null)
                 return;

             if (ImageAnimator.CanAnimate(m_imgImage))
             {
                 ImageAnimator.UpdateFrames(m_imgImage);
             }
         }

         private void OnImageAnimate(Object sender,EventArgs e)
         {
             this.Invalidate();
         }

         private void Form1_Load(object sender, EventArgs e)
         {

         }
     }
 }