using System.Windows.Forms;

using Microsoft.VisualBasic.ApplicationServices;

namespace Highflyer

{

    /// <summary>

    /// 单实例应用程序封装类

    /// </summary>

    public class SingleInstanceApplicationWrapper : WindowsFormsApplicationBase

    {

        private readonly Form mainForm;

        public SingleInstanceApplicationWrapper(Form form)

        {

            mainForm = form;

#if DEBUG

            this.IsSingleInstance = false;

#endif

#if RELEASE

            this.IsSingleInstance = true;

#endif

        }

        protected override bool OnStartup(StartupEventArgs e)

        {

            Application.Run(mainForm);

            return false;

        }

        protected override void OnStartupNextInstance(StartupNextInstanceEventArgs e)

        {

            // 这里可以把本次使用的参数传给之前的实例，本人在一个WPF 屏幕键盘项目里传送了键盘显示方式（数字、英文、手写）参数

            //e.BringToForeground = true;

            //if (e.CommandLine.Count > 0)

            //{

            //  app.DealArgs(e.CommandLine.ToArray());

            //}

        }

    }

}

using System;

using System.Windows.Forms;

using Highflyer;

namespace Eparcar.ParkLocal.GateBoxClient

{

    static class Program

    {

        /// <summary>

        /// 应用程序的主入口点。

        /// </summary>

        [STAThread]

        static void Main(string[] args)

        {

            Application.EnableVisualStyles();

            Application.SetCompatibleTextRenderingDefault(false);

            MainForm mainForm = new MainForm();

            SingleInstanceApplicationWrapper wrapper = new SingleInstanceApplicationWrapper(mainForm);

            wrapper.Run(args);

        }

    }

}