コード例 #1
0
ファイル: frmPowerTrans.cs プロジェクト: fido2478/engcon
        private void btnStartStop_Click(object sender, EventArgs e)
        {
            // do stuff depending on the text
            switch (btnStartStop.Text)
            {
                case "Start":
                    {
                        // create a new Messages object and pass it into the PowerNotifications
                        // constructor
                        MessageList = new Messages();

                        // create the powernotifications object
                        pn = new PowerNotifications(ref MessageList);
                        pn.Start();

                        // start a timer to monitor the messages queue
                        if (timer1 == null)
                            timer1 = new System.Windows.Forms.Timer();
                        timer1.Interval = 250;
                        timer1.Tick += new EventHandler(ReadText);
                        timer1.Enabled = true;
                        btnStartStop.Text = "Stop";
                    }
                    break;
                case "Stop":
                    // stop the thread
                    pn.Stop();
                    lstInfo.Items.Add("(" + System.DateTime.Now.ToString("hh:mm:ss") + ") stopping loop");
                    timer1.Enabled = false;
                    btnStartStop.Text = "Start";
                    break;
                default:
                    break;
            }
        }
コード例 #2
0
ファイル: frmPowerTrans.cs プロジェクト: fido2478/engcon
        // Overloaded constructor that accepts a reference to the
        // Messages object created by the form.
        public PowerNotifications(ref Messages mList)
        {
            // assign the messages object
            MessageList = mList;

            // set up the Message queue options, create the queue
            // and create a background thread to monitor it
            MsgQOptions options = new MsgQOptions();
            options.dwFlags = 0;
            options.dwMaxMessages = 20;
            options.cbMaxMessage = 10000;
            options.bReadAccess = true;
            options.dwSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(options);
            ptr = CreateMsgQueue("Test", ref options);
            IntPtr ptr2 = RequestPowerNotifications(ptr, 0xFFFFFFFF);
            if (ptr2.Equals(IntPtr.Zero))
            {
                // error occurred
                MessageList.AddMessage("Error with RPN");
            }

            t = new Thread(new ThreadStart(DoWork));
        }