jisco_winform_wzjl/CarMonitor/frmMsgInfo.cs

using Common;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Media;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CarMonitor
{
    public partial class frmMsgInfo : Form
    {
        private static frmMsgInfo frm = null;
        private static frmMonitor frmP;
        public static frmMsgInfo CreateInstrance(frmMonitor frmMonitoring)
        {
            if (frm == null)
            {
                frm = new frmMsgInfo();
            }
            frmP = frmMonitoring;
            return frm;
        }


        public frmMsgInfo()
        {
            InitializeComponent();
        }

        string rk_CurPath = Application.StartupPath;  //System.Environment.CurrentDirectory;//获取到当前路径
        SoundPlayer play_ls = null;

        public void setLbTxt(string pointName)
        {
            lbPoint.Text = pointName;
        }

        private void frmMsgInfo_Load(object sender, EventArgs e)
        {
            try
            {
                play_ls = new SoundPlayer(rk_CurPath + "\\Sound\\7887.wav");
            }
            catch (Exception ex) { }
            finally 
            {
                timer1.Start();
            }
        }


        private void timer1_Tick(object sender, EventArgs e)
        {
            play_ls.Play();
        }

        private void frmMsgInfo_FormClosing(object sender, FormClosingEventArgs e)
        {
            try
            {
                if (play_ls != null)
                {
                    play_ls.Stop();
                }
            }
            catch (Exception ex) { }
            finally
            {
                frmP.bMsgOpen = false;
                frm = null;
                timer1.Stop();

                PbCacheMonitor.frmMsgClosingTime = DateTime.Now;
            }
        }

        public void CloseFrm() 
        {
            this.Close();
        }

        public void setFrmNull()
        {
            setFormInfo(frm);
        }

        public void setFormInfo(Form fm)
        {
            setFormMsg(fm);
        }

        /// <summary>
        /// 如果ResultMessage为true或者false，则sType 为0的时候readonly  1为enable  2为visable  3为check
        /// </summary>
        /// <param name="control"></param>
        /// <param name="ResultMessage"></param>
        /// <param name="sType"></param>
        private void setFormMsg(Form fm)
        {
            if (fm.InvokeRequired)
            {
                Action<Form> action = new Action<Form>(setFormInfo);
                Invoke(action, new object[] { fm });
            }
            else
            {
                fm.Close();
            }
        }

        protected override void OnVisibleChanged(EventArgs e)
        {
            base.OnVisibleChanged(e);
            if (!IsHandleCreated)
            {
                this.Close();
            }
        }
    }
}