KeepScreenLight/KeepScreenLight/MainForm.cs

using KeepScreenLight.Utils;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace KeepScreenLight
{
    public partial class MainForm : Form
    {
        bool flag = false;
        public MainForm()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (!flag)
            {
                // 让屏幕常亮
                SystemSleep.PreventForCurrentThread();
                button1.Text = "Stop";
                
            }
            else
            {
                SystemSleep.RestoreForCurrentThread();
                button1.Text = "Start";
            }
        }
    }
}