BPASmartClient/BPASmartClient.MorkT/PreventSleep.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace BPASmartClient.MorkT
{
    public class PreventSleep
    {
        [DllImport("kernel32.dll")]
        static extern uint SetThreadExecutionState(uint dwThreadId);
        const uint ES_SYSTEM_REQUIRED = 0x00000001;
        const uint ES_DISPLAY_REQUIRED = 0x00000002;
        const uint ES_CONTINUOUS = 0x80000000;

        public static void SleepControl(bool isSleep)
        {
            if (isSleep)
            {
                SetThreadExecutionState(ES_CONTINUOUS | ES_DISPLAY_REQUIRED | ES_SYSTEM_REQUIRED); 
            }
            else
            {
                SetThreadExecutionState(ES_CONTINUOUS);
            }
        }
    }
}