Kernel32Imports.cs

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using System.Runtime.InteropServices;
using System;

namespace DirectOutput.General
{
    public class Kernel32Imports
    {
        [DllImport("kernel32.dll")]
        public extern static int GetCurrentProcessorNumber();


        private static bool GetCurrentProcessorNumberIsAvailableResult = false;
        private static bool GetCurrentProcessorNumberIsAvailableChecked=false;
        private static object GetCurrentProcessorNumberIsAvailableLocker = new object();
        public static bool GetCurrentProcessorNumberIsAvailable
        {
            get
            {
                lock (GetCurrentProcessorNumberIsAvailableLocker)
                {
                    if (GetCurrentProcessorNumberIsAvailableChecked) return GetCurrentProcessorNumberIsAvailableResult;
                    try
                    {
                        Kernel32Imports.GetCurrentProcessorNumber();
                        GetCurrentProcessorNumberIsAvailableResult = true;
                    }
                    catch (Exception)
                    {
                        GetCurrentProcessorNumberIsAvailableResult = false;
                    }
                }
                return GetCurrentProcessorNumberIsAvailableResult;
            }
        }

    }
}