ZLPlugin_LisPacs_MR_NEW/ZLPlugin_LisPacs_MR_YJMZ/Program.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Windows.Forms;

namespace ZLPlugin_LisPacs_MR_YJMZ
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            #region 控制程序只能打开一次   检测进程中是否存在有不同pid、相同程序名的;
            Process process = Process.GetCurrentProcess();
            if (Process.GetProcesses().Any(s => s.ProcessName == process.ProcessName && (!s.Id.Equals(process.Id))))
            {
                MessageBox.Show("程序已打开，请查看任务栏图标或托盘处！");
                return;
            }
            #endregion
            Application.Run(new Form1());
        }
    }
}