BTool.DeviceForm.DeviceFormClose C# (CSharp) Method

        public void DeviceFormClose(bool closeDevice)
        {
            if (closeDevice && !formClosing)
            {
                formClosing = true;
                CloseActiveDevice(this, null);
            }
            threadMgr.PauseThreads();
            threadMgr.WaitForPause();
            threadMgr.ClearQueues();
            commMgr.ClosePort();
            if (processRxProc != null)
                while (processRxProc.IsAlive)
                    ;
            msgLogForm.ResetMsgNumber();
            threadMgr.ExitThreads();
            SaveUserSettings();
        }

        private void AddDeviceForm()
        {
            if (InvokeRequired)
            {
                try
                {
                    Invoke((Delegate)new AddDeviceFormDelegate(AddDeviceForm));
                }
                catch { }
            }
            else
            {
                m_mutex.WaitOne();
                DeviceForm deviceForm = new DeviceForm();
                if (deviceForm == null)
                    return;
                deviceForm.BDAddressNotify += new EventHandler(DeviceBDAddressNotify);
                deviceForm.ConnectionNotify += new EventHandler(DeviceConnectionNotify);
                deviceForm.DisconnectionNotify += new EventHandler(DeviceDisconnectionNotify);
                deviceForm.ChangeActiveRoot += new EventHandler(DeviceChangeActiveRoot);
                deviceForm.CloseActiveDevice += new EventHandler(DeviceCloseActiveDevice);

                if (deviceForm.DeviceFormInit())
                {
                    deviceForm.TopLevel = false;
                    deviceForm.Parent = plDevice;
                    deviceForm.Dock = DockStyle.Fill;
                    foreach (Control control in plDevice.Controls)
                    {
                        if (control.GetType().BaseType == typeof(Form))
                        {
                            Form form = (Form)control;
                            if (form.Visible)
                            {
                                form.Hide();
                                break;
                            }
                        }
                    }
                    deviceForm.Show();
                    AddToTreeDeviceInfo(deviceForm.devInfo, deviceForm);
                    comPortTreeForm.ClearSelectedNode();
                    deviceForm.SendGAPDeviceInit();
                }
                else
                    deviceForm.DeviceFormClose(false);

                m_mutex.ReleaseMutex();
            }
        }