quite a bit, too much to summarize here

WindowsFormsApplication2/Discord/ActivityManager.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace Discord
+{
+    public partial class ActivityManager
+    {
+        public void RegisterCommand()
+        {
+            RegisterCommand(null);
+        }
+    }
+}

WindowsFormsApplication2/Discord/Constants.cs

@@ -0,0 +1,9 @@
+using System;
+
+namespace Discord
+{
+    static class Constants
+    {
+        public const string DllName = "discord_game_sdk";
+    }
+}

WindowsFormsApplication2/Discord/ImageManager.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Runtime.InteropServices;
+#if UNITY_EDITOR || UNITY_STANDALONE
+using UnityEngine;
+#endif
+
+namespace Discord
+{
+	public partial struct ImageHandle
+    {
+        static public ImageHandle User(Int64 id)
+        {
+            return User(id, 128);
+        }
+
+        static public ImageHandle User(Int64 id, UInt32 size)
+        {
+            return new ImageHandle
+            {
+                Type = ImageType.User,
+                Id = id,
+                Size = size,
+            };
+        }
+    }
+
+    public partial class ImageManager
+    {
+        public void Fetch(ImageHandle handle, FetchHandler callback)
+        {
+            Fetch(handle, false, callback);
+        }
+
+        public byte[] GetData(ImageHandle handle)
+        {
+            var dimensions = GetDimensions(handle);
+            var data = new byte[dimensions.Width * dimensions.Height * 4];
+            GetData(handle, data);
+            return data;
+        }
+
+#if UNITY_EDITOR || UNITY_STANDALONE
+        public Texture2D GetTexture(ImageHandle handle)
+        {
+            var dimensions = GetDimensions(handle);
+            var texture = new Texture2D((int)dimensions.Width, (int)dimensions.Height, TextureFormat.RGBA32, false, true);
+            texture.LoadRawTextureData(GetData(handle));
+            texture.Apply();
+            return texture;
+        }
+#endif
+    }
+}

WindowsFormsApplication2/Discord/LobbyManager.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Runtime.InteropServices;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Discord
+{
+    public partial class LobbyManager
+    {
+        public IEnumerable<User> GetMemberUsers(Int64 lobbyID)
+        {
+            var memberCount = MemberCount(lobbyID);
+            var members = new List<User>();
+            for (var i = 0; i < memberCount; i++)
+            {
+                members.Add(GetMemberUser(lobbyID, GetMemberUserId(lobbyID, i)));
+            }
+            return members;
+        }
+
+        public void SendLobbyMessage(Int64 lobbyID, string data, SendLobbyMessageHandler handler)
+        {
+            SendLobbyMessage(lobbyID, Encoding.UTF8.GetBytes(data), handler);
+        }
+    }
+}

WindowsFormsApplication2/Discord/StorageManager.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Discord
+{
+    public partial class StorageManager
+    {
+        public IEnumerable<FileStat> Files()
+        {
+            var fileCount = Count();
+            var files = new List<FileStat>();
+            for (var i = 0; i < fileCount; i++)
+            {
+                files.Add(StatAt(i));
+            }
+            return files;
+        }
+    }
+}

WindowsFormsApplication2/Discord/StoreManager.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Runtime.InteropServices;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Discord
+{
+    public partial class StoreManager
+    {
+        public IEnumerable<Entitlement> GetEntitlements()
+        {
+            var count = CountEntitlements();
+            var entitlements = new List<Entitlement>();
+            for (var i = 0; i < count; i++)
+            {
+                entitlements.Add(GetEntitlementAt(i));
+            }
+            return entitlements;
+        }
+
+        public IEnumerable<Sku> GetSkus()
+        {
+            var count = CountSkus();
+            var skus = new List<Sku>();
+            for (var i = 0; i < count; i++)
+            {
+                skus.Add(GetSkuAt(i));
+            }
+            return skus;
+        }
+    }
+}