C#处理gif图片

Question

C#能够处理gif图片？
能的话,C#处理gif图片的方法？

Answer 1

对一般的GIF处理可是直接保存成256色的GIF如果需要透明可以参考http://blog.csdn.net/zgke/archive/2008/11/28/3401077.aspx

Answer 2

方法一（简单）：用label，然后设置为背景图片
方法二：使用GDI+ 来实现 (很粗略的实现，没有帧间隔)            Image image = Image.FromFile("e:\\temp.gif");
            
            FrameDimension fd = new FrameDimension(image.FrameDimensionsList[0]);
            int count = image.GetFrameCount(fd);
            Graphics g = this.panel1.CreateGraphics();
            while (true)
            {
                
                for (int i = 0; i < count; i++)
                {
                    
                    //g.Clear(Color.White);
                    image.SelectActiveFrame(fd, i);
                    g.DrawImage(image, new Point(0, 0));
                    System.Threading.Thread.Sleep(100);
                    Application.DoEvents();
                }
            }
方法三：（推荐，有桢间隔）            Bitmap animatedGif = new Bitmap("e:\\temp2.gif");
            Graphics g = this.panel1.CreateGraphics();
            // A Gif image's frame delays are contained in a byte array 
            // in the image's PropertyTagFrameDelay Property Item's 
            // value property. 
            // Retrieve the byte array... 
            int PropertyTagFrameDelay = 0x5100;
            PropertyItem propItem = animatedGif.GetPropertyItem(PropertyTagFrameDelay);
            byte[] bytes = propItem.Value;            // Get the frame count for the Gif... 
            FrameDimension frameDimension = new FrameDimension(animatedGif.FrameDimensionsList[0]);
            int frameCount = animatedGif.GetFrameCount(FrameDimension.Time);            // Create an array of integers to contain the delays, 
            // in hundredths of a second, between each frame in the Gif image. 
            int[] delays = new int[frameCount + 1];
            int i = 0;
            for (i = 0; i <= frameCount - 1; i++)
            {
                delays[i] = BitConverter.ToInt32(bytes, i * 4);
            }            // Play the Gif one time... 
            while (true)
            {
                for (i = 0; i <= animatedGif.GetFrameCount(frameDimension) - 1; i++)
                {
                    animatedGif.SelectActiveFrame(frameDimension, i);
                    g.DrawImage(animatedGif, new Point(0, 0));
                    Application.DoEvents();
                    Thread.Sleep(delays[i] * 10);
                }
            }

Answer 3

参考
http://www.cnblogs.com/KissKnife/archive/2008/11/12/923352.html
http://www.cnblogs.com/mbskys/articles/714648.html