using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace GetData_PLC
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]

        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);

            //frmMain frmMainSingle = frmMain.getSingle();
            //Application.Run(frmMainSingle);



            bool createdNew; Mutex instance = new Mutex(true, "互斥名(保证在本机中唯一)", out createdNew);
            if (createdNew)
            {
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new frmMain());
                instance.ReleaseMutex();
            }

            else
            {
                MessageBox.Show("已经启动了一个程序，请先退出！", "系统提示", MessageBoxButtons.OK,
                MessageBoxIcon.Error);
                Application.Exit();
            }
        }
    }
}