ConsoleInPeekCharacter.cs

using System;
using System.Threading.Tasks;
 
namespace Waher.Runtime.Console.Worker
{
    public class ConsoleInPeekCharacter : WorkItem
    {
        private readonly TaskCompletionSource<int> result;
 
        public ConsoleInPeekCharacter(TaskCompletionSource<int> Result)
        {
            this.result = Result;
        }
 
        public override Task Execute()
        {
            try
            {
                int Result = System.Console.In.Peek();
                this.result.TrySetResult(Result);
            }
            catch (Exception ex)
            {
                this.result.TrySetException(ex);
            }
 
            return Task.CompletedTask;
        }
    }
}