C#制作透明背景GIF动画(演示+源码）

  private void btn_Click(object sender, EventArgs e)

        {

            //GIF图片大小

            Zgke.MyImage.ImageGif _Gif = new Zgke.MyImage.ImageGif(250, 38);

            int _Temp = (int)’A’;

            for (int i = 0; i != 26; i++)

            {

                Bitmap _BitMap = new Bitmap(250, 38);//临时对角

                Graphics _G = Graphics.FromImage(_BitMap);

                char T = (char)_Temp;

                _G.DrawString(T.ToString().PadLeft(9, T), new Font("Arial", 24), Brushes.Red, 0, 0);

                _Gif.AddImage(_BitMap, 100, true, Zgke.MyImage.ImageGif.DisposalMethod.NoDisposalImage);

                _G.Dispose();

                _Temp++;

                _BitMap.Dispose();

            }

            pictureBox1.Image = _Gif.Image;

            _Gif.SaveFile(@"C:\1.gif");

            //预览显示

            pictureBox1.Image = Image.FromFile(@"C:\1.gif");

        }

namespace Zgke.MyImage

{

    /// <summary>

    /// GIF操作类

    /// zgke@sina.com

    /// QQ:116149

    /// 转自:http://blog.csdn.net/zgke/archive/2009/01/06/3721389.aspx

    /// </summary>

    public class ImageGif

    {

        private Header m_Header;

        private LogicalScreen m_LogicalScreen;

        private ColorTable m_GlobalColorTable;

        private IList<ExtensionIntroducer> m_ExtensionIntroducer = new List<ExtensionIntroducer>();

        private ApplicationExtension m_ApplicationExtension;

        private IList<GraphicControlExtension> m_GraphicControlExtension = new List<GraphicControlExtension>();

        /// <summary>

        /// 当前位置

        /// </summary>

        private int m_Index = 0;

        private bool m_Open = false;

        /// <summary>

        /// 是否正常打开

        /// </summary>

        public bool OpenOK { get { return m_Open; } }

        /// <summary>

        /// 图形数量

        /// </summary>

        public int ImageCount { get { return m_GraphicControlExtension.Count; } }

        /// <summary>

        /// 获取GIF图形

        /// </summary>

        public Image Image

        {..........}