using System;
using System.Runtime.InteropServices;
using System.Threading;
using AcroPDFLib;
 
// Related to: http://stackoverflow.com/questions/2702164
namespace ComConsoleApplication
{
    [ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("00000016-0000-0000-C000-000000000046")]
    public interface IMessageFilter