GifImage

public sealed class GifImage : RasterCachedMultipageImage, IMultipageImageExt

[C#]

using (var image = Image.Load("Animation.gif"))
{
    var options = new GifOptions
    {
        FullFrame = true,
        MultiPageOptions = new MultiPageOptions
        {
            Mode = MultiPageMode.TimeInterval,
            TimeInterval = new TimeInterval(0, 400)
        }
    };

    image.Save("PartOfAnimation.gif", options);
}

[C#]

string dir = "c:\\temp\\";

// Create a GIF Frame block of 100x100 px.
using (Aspose.Imaging.FileFormats.Gif.Blocks.GifFrameBlock firstBlock = new Aspose.Imaging.FileFormats.Gif.Blocks.GifFrameBlock(100, 100))
{
    // Fill the entire block in red.
    Aspose.Imaging.Graphics gr = new Aspose.Imaging.Graphics(firstBlock);
    Aspose.Imaging.Brushes.SolidBrush brush = new Aspose.Imaging.Brushes.SolidBrush(Aspose.Imaging.Color.Red);
    gr.FillRectangle(brush, firstBlock.Bounds);

    using (Aspose.Imaging.FileFormats.Gif.GifImage gifImage = new Aspose.Imaging.FileFormats.Gif.GifImage(firstBlock))
    {
        gifImage.Save(dir + "output.gif");
    }
}

[C#]

static void Main(string[] args)
{
    // Load frames
    var frames = LoadFrames("Animation frames").ToArray();

    // Create GIF image using the first frame
    using (var image = new GifImage(new GifFrameBlock(frames[0])))
    {
        // Add frames to the GIF image using the AddPage method
        for (var index = 1; index < frames.Length; index++)
        {
            image.AddPage(frames[index]);
        }

        // Save GIF image
        image.Save("Multipage.gif");
    }
}

private static IEnumerable<RasterImage> LoadFrames(string directory)
{
    foreach (var filePath in Directory.GetFiles(directory))
    {
        yield return (RasterImage)Image.Load(filePath);
    }
}