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

namespace InvoicingTool
{
    static class Program
    {
        private static System.Threading.Mutex mutex;
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            mutex = new System.Threading.Mutex(true, "InvoicingToolOnlyRun");
            if (mutex.WaitOne(0, false))
            {
                if (args.Count() > 0)
                {
                    if (args[0].ToLower() == "checkbill")
                    {
                        Application.Run(new CheckBill());
                    }
                    else
                    {
                        Application.Run(new MenuMain(args));
                    }
                }
                else
                {
                    Application.Run(new MenuMain(args));
                }
            }else
            {
                Application.Exit();
            }
        }
    }
}