C#:Application操作（待补充）

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading;

using System.Windows.Forms;



namespace MyCommanHelper

{

    public class ApplicationHelper

    {



        /// <summary>

        /// 线程只运行一次

        /// </summary>

        /// <param name="frm">对话框程序</param>

        /// <param name="sProductName">产品名</param>

        /// <returns></returns>

        public static void RunOnlyOnce(Form frm, string sProductName)

        {

            bool createdNew = false;

            Mutex mutex = new Mutex(true, sProductName, out createdNew);

            if (createdNew)

            {

                Application.Run(frm);

                mutex.ReleaseMutex();

                mutex.Close();

                mutex.Dispose();

            }

            else 

            { 

                MessageBoxHelper.ShowInfoMessage(sProductName + "已经启动!");

            }

        }



        /// <summary>

        /// 设置漏斗光标

        /// </summary>

        public static void SetWaitCursor()

        {

            Cursor.Current = Cursors.WaitCursor;

        }



        /// <summary>

        /// 设置光标为默认值

        /// </summary>

        public static void ResetCursor()

        {

            Cursor.Current = Cursors.Default;

        }



        /// <summary>

        /// 处理当前在消息队列中的所有 Windows 消息。

        /// </summary>

        public static void DoEvents()

        {

            Application.DoEvents();

        }

    }

}