WinForm中实现自动关闭的MessageBox(CSharp)

WinForm中自定义类实现自动关闭的MessageBox实例.

using System;using System.Windows.Forms;using System.Threading;using System.Runtime.InteropServices;namespace CustomControls{    /// <summary>    /// 自定义关闭消息窗体    /// </summary>    public static class CusMessageBox    {        //常量定义         private const int WM_CLOSE = 0x10;        // WinAPI 函数声明         [DllImport("user32.dll",SetLastError = true)]        static extern IntPtr FindWindow(string strClassName, string strWindowName);        [DllImport("user32.dll",CharSet=CharSet.Auto)]        static extern int PostMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lPara);        /// <summary>        /// 显示消息函数         /// </summary>        /// <param name="strMsg">消息信息</param>        /// <param name="strTitle">显示标题</param>        /// <param name="btns">按钮类型</param>        /// <param name="icons">图标类型</param>        /// <param name="iShowTimeSpan">等待时间(毫秒)</param>        public static void Show(string strMsg, string strTitle, MessageBoxButtons btns, MessageBoxIcon icons, int iShowTimeSpan)        {            ThreadPool.QueueUserWorkItem(new WaitCallback(CloseWindow), new CloseEntity() {Title=strTitle,TimeOutSpan = iShowTimeSpan });            MessageBox.Show(strMsg, strTitle, btns, icons);        }        /// <summary>        /// 关闭窗口线程执行体         /// </summary>        /// <param name="state"></param>        private static void CloseWindow(object state)        {            CloseEntity cs = state as CloseEntity;            Thread.Sleep(cs.TimeOutSpan);            IntPtr dlg = FindWindow(null, cs.Title);            if (dlg != IntPtr.Zero)            {       //关闭弹出消息窗口                 PostMessage(dlg, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);            }        }    }    public class CloseEntity    {        private string strTitle;//标题         private int iTimeOutSpan;//等待时间(毫秒)        public string Title        {            get { return strTitle; }            set { strCaption = value; }        }        public int TimeOutSpan        {            get { return iTimeOutSpan; }            set { iTimeOutSpan = value; }        }    }}