添加项目文件。

WpfAnimatedGif/Decoding/GifTrailer.cs

@@ -0,0 +1,21 @@
+namespace WpfAnimatedGif.Decoding
+{
+    internal class GifTrailer : GifBlock
+    {
+        internal const int TrailerByte = 0x3B;
+
+        private GifTrailer()
+        {
+        }
+
+        internal override GifBlockKind Kind
+        {
+            get { return GifBlockKind.Other; }
+        }
+
+        internal static GifTrailer ReadTrailer()
+        {
+            return new GifTrailer();
+        }
+    }
+}