GifEncoder Class

public sealed class GifEncoder : IDisposable

Public NotInheritable Class GifEncoder
	Implements IDisposable

public ref class GifEncoder sealed : IDisposable

[<SealedAttribute>]
type GifEncoder = 
    class
        interface IDisposable
    end

Inheritance

Object    GifEncoder

Implements

IDisposable

The simplest way to create a single-frame GIF image is calling the static EncodeImage method. It can quantize and dither any input IReadableBitmapData source.

The simplest way to create a GIF animation is calling the static EncodeAnimation method. It expects an AnimatedGifConfiguration that describes the frames and delays to be used along with numerous optional configuration such as a specific quantizer and ditherer, looping mode, handling of possible different input image sizes, encoding strategies like allowing delta images or explicitly encoding transparent borders.

Alternatively, you can instantiate the GifEncoder class, which allows you even more control at lower levels. The RepeatCount, GlobalPalette and BackColorIndex properties should be set before adding the first frame, whereas CompressionMode can be changed before each frame. The AddImage method allows specifying a location for each frame as well as an action to be performed after the delay interval of the corresponding frame is over. You can even write comments to the serialization stream by the AddComments method.

The following example demonstrates how to use the encoder in a using block:

using (var encoder = new GifEncoder(stream, new Size(48, 48)) { GlobalPalette = palette })
{
    encoder.AddComments("My GIF animation");
    encoder.AddImage(frame1, location1, delay1);
    encoder.AddImage(frame2, location2, delay2);
}

Or, by using fluent syntax the example above can be re-written like this:

// Note the last FinalizeEncoding step. In the above example it is called implicitly at the end of the using block.
new GifEncoder(stream, new Size(48, 48)) { GlobalPalette = palette }
    .AddComments("My GIF animation")
    .AddImage(frame1, location1, delay1)
    .AddImage(frame2, location2, delay2)
    .FinalizeEncoding();

Reference