Add ISteamMatchmakingServers.HasServerResponded() to partial class instead

Facepunch.Steamworks/Interfaces/ISteamMatchmakingServers.cs

@@ -0,0 +1,28 @@
+using Steamworks.Data;
+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace Steamworks
+{
+	internal partial class ISteamMatchmakingServers
+	{
+		/// <summary>
+		/// Read gameserveritem_t.m_bHadSuccessfulResponse without allocating the struct on the heap
+		/// </summary>
+		/// <param name="hRequest"></param>
+		/// <param name="iServer"></param>
+		/// <returns></returns>
+		internal bool HasServerResponded( HServerListRequest hRequest, int iServer )
+		{
+			IntPtr returnValue = _GetServerDetails( Self, hRequest, iServer );
+
+			// Return false if steam returned null
+			if ( returnValue == IntPtr.Zero ) return false;
+
+			// first 8 bytes is IPAddress, next 4 bytes is ping, next 1 byte is m_bHadSuccessfulResponse
+			return Marshal.ReadByte( IntPtr.Add( returnValue, 12 ) ) == 1;
+		}
+	}
+}