解决winform中gif小图片不会闪动问题 2010-7-9 23:00阅读(3)

在项目中加上AnimateImage.cs文件

下面是AnimateImage类的内容

using System; using System.Collections.Generic; using System.Text; using System.Drawing; using System.Drawing.Imaging;

namespace Project {     /// <summary>       /// 表示一类带动画功能的图像。       /// </summary>       public class AnimateImage     {         Image image;         FrameDimension frameDimension;         /// <summary>           /// 动画当前帧发生改变时触发。           /// </summary>           public event EventHandler<EventArgs> OnFrameChanged;

        /// <summary>           /// 实例化一个AnimateImage。           /// </summary>           /// <param name="img">动画图片。</param>           public AnimateImage(Image img)         {             image = img;

            lock (image)             {                 mCanAnimate = ImageAnimator.CanAnimate(image);                 if (mCanAnimate)                 {                     Guid[] guid = image.FrameDimensionsList;                     frameDimension = new FrameDimension(guid[0]);                     mFrameCount = image.GetFrameCount(frameDimension);                 }             }         }

        bool mCanAnimate;         int mFrameCount = 1, mCurrentFrame = 0;

        /// <summary>           /// 图片。           /// </summary>           public Image Image         {             get { return image; }         }

        /// <summary>           /// 是否动画。           /// </summary>           public bool CanAnimate         {             get { return mCanAnimate; }         }

        /// <summary>           /// 总帧数。           /// </summary>           public int FrameCount         {             get { return mFrameCount; }         }

        /// <summary>           /// 播放的当前帧。           /// </summary>           public int CurrentFrame         {             get { return mCurrentFrame; }         }

        /// <summary>           /// 播放这个动画。           /// </summary>           public void Play()         {             if (mCanAnimate)             {                 lock (image)                 {                     ImageAnimator.Animate(image, new EventHandler(FrameChanged));                 }             }         }

        /// <summary>           /// 停止播放。           /// </summary>           public void Stop()         {             if (mCanAnimate)             {                 lock (image)                 {                     ImageAnimator.StopAnimate(image, new EventHandler(FrameChanged));                 }             }         }

        /// <summary>           /// 重置动画，使之停止在第0帧位置上。           /// </summary>           public void Reset()         {             if (mCanAnimate)             {                 ImageAnimator.StopAnimate(image, new EventHandler(FrameChanged));                 lock (image)                 {                     image.SelectActiveFrame(frameDimension, 0);                     mCurrentFrame = 0;                 }             }         }

        private void FrameChanged(object sender, EventArgs e)         {             mCurrentFrame = mCurrentFrame + 1 >= mFrameCount ? 0 : mCurrentFrame + 1;             lock (image)             {                 image.SelectActiveFrame(frameDimension, mCurrentFrame);             }             if (OnFrameChanged != null)             {                 OnFrameChanged(image, e);             }         }     } }

AnimateImage类的内容结束-----

 

AnimateImage类的用法:

在图片应用的窗体后台代码中：

public partial class Default : Form     {         AnimateImage image;

   public Default()         {                                    //图片动态显示             image = new AnimateImage(Image.FromFile(Application.StartupPath + "\\" + "Imgs" + "\\" + "02.gif"));             image.OnFrameChanged += new EventHandler<EventArgs>(image_OnFrameChanged);             SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint, true);

                    }

private void Default_Load(object sender, EventArgs e)         {                         image.Play();             this.pictureBoxBianlukou.ImageLocation = Application.StartupPath + "\\" + "Imgs" + "\\" + "02.gif";                     }

}