C# Single Instance WinForms and Microsoft.VisualBasic.dll

引用自：http://www.hanselman.com/blog/TheWeeklySourceCode31SingleInstanceWinFormsAndMicrosoftVisualBasicdll.aspx

 

using System;

using System.Windows.Forms;

using Microsoft.VisualBasic.ApplicationServices;

 

namespace SuperSingleInstance

{

    static class Program

    {

        [STAThread]

        static void Main()

        {

            Application.EnableVisualStyles();

            Application.SetCompatibleTextRenderingDefault(false);

            string[] args = Environment.GetCommandLineArgs();

            SingleInstanceController controller = new SingleInstanceController();

            controller.Run(args);

        }

    }

 

    public class SingleInstanceController : WindowsFormsApplicationBase

    {

        public SingleInstanceController()

        {

            IsSingleInstance = true;

 

            StartupNextInstance += this_StartupNextInstance;

        }

 

        void this_StartupNextInstance(object sender, StartupNextInstanceEventArgs e)

        {

            Form1 form = MainForm as Form1; //My derived form type

            form.LoadFile(e.CommandLine[1]);

        }

 

        protected override void OnCreateMainForm()

        {

            MainForm = new Form1();

        }

    }

}