/// <summary>
/// Starts the monitoring.
/// </summary>
internal void StartMonitoring(VirtualComPortsFinderMode monitorMode)
{
// Clear any existing monitoring if it exists
StopMonitoring();
// Add subscriptions to WMI insert and removal events
WqlEventQuery eventQuery;
ManagementScope scope = new ManagementScope("root\\CIMV2");
scope.Options.EnablePrivileges = true;
try
{
if (monitorMode == VirtualComPortsFinderMode.Added || monitorMode == VirtualComPortsFinderMode.Both)
{
// Subscribe to instance creation events
eventQuery = new WqlEventQuery("__InstanceCreationEvent");
eventQuery.WithinInterval = new TimeSpan(0, 0, 3);
eventQuery.Condition = @"TargetInstance ISA 'Win32_SerialPort'";
_usbInsertWatcher = new ManagementEventWatcher(scope, eventQuery);
_usbInsertWatcher.EventArrived += UsbInsertWatcher_EventArrived;
_usbInsertWatcher.Start();
Trace.TraceInformation("{0}.StartMonitoring: Win32_SerialPort insert watcher started", CLASSNAME);
}
if (monitorMode == VirtualComPortsFinderMode.Removed || monitorMode == VirtualComPortsFinderMode.Both)
{
// Subscribe to instance removal events
eventQuery = new WqlEventQuery("__InstanceDeletionEvent");
eventQuery.WithinInterval = new TimeSpan(0, 0, 3);
eventQuery.Condition = @"TargetInstance ISA 'Win32_SerialPort'";
_usbRemovalWatcher = new ManagementEventWatcher(scope, eventQuery);
_usbRemovalWatcher.EventArrived += UsbRemovalWatcher_EventArrived;
_usbRemovalWatcher.Start();
Trace.TraceInformation("{0}.StartMonitoring: Win32_SerialPort removal watcher started", CLASSNAME);
}
}
catch (Exception ex)
{
// Make sure we cleanup properly if there is an error
Trace.TraceError("{0}.StartMonitoring: Exception={1}", CLASSNAME, ex.GetBaseException());
StopMonitoring();
throw;
}
}
/// <summary>
/// Starts the monitoring.
/// </summary>
/// <param name="monitorMode">The monitor mode.</param>
public void StartMonitoring(VirtualComPortsFinderMode monitorMode)
{
// Clear any existing monitoring if it exists
this.StopMonitoring();
// Add subscriptions to WMI insert and removal events
WqlEventQuery eventQuery;
ManagementScope scope = new ManagementScope("root\\CIMV2");
scope.Options.EnablePrivileges = true;
try
{
if (monitorMode == VirtualComPortsFinderMode.Added || monitorMode == VirtualComPortsFinderMode.Both)
{
// Subscribe to instance creation events
eventQuery = new WqlEventQuery("__InstanceCreationEvent");
eventQuery.WithinInterval = new TimeSpan(0, 0, 3);
eventQuery.Condition = @"TargetInstance ISA 'Win32_SerialPort'";
this.usbInsertWatcher = new ManagementEventWatcher(scope, eventQuery);
this.usbInsertWatcher.EventArrived += this.UsbInsertWatcher_EventArrived;
this.usbInsertWatcher.Start();
Trace.TraceInformation("{0}.StartMonitoring: Win32_SerialPort insert watcher started", CLASSNAME);
}
if (monitorMode == VirtualComPortsFinderMode.Removed || monitorMode == VirtualComPortsFinderMode.Both)
{
// Subscribe to instance removal events
eventQuery = new WqlEventQuery("__InstanceDeletionEvent");
eventQuery.WithinInterval = new TimeSpan(0, 0, 3);
eventQuery.Condition = @"TargetInstance ISA 'Win32_SerialPort'";
this.usbRemovalWatcher = new ManagementEventWatcher(scope, eventQuery);
this.usbRemovalWatcher.EventArrived += this.UsbRemovalWatcher_EventArrived;
this.usbRemovalWatcher.Start();
Trace.TraceInformation("{0}.StartMonitoring: Win32_SerialPort removal watcher started", CLASSNAME);
}
}
catch (Exception ex)
{
// Make sure we cleanup properly if there is an error
Trace.TraceError("{0}.StartMonitoring: Exception={1}", CLASSNAME, ex.GetBaseException());
this.StopMonitoring();
throw;
}
}
