public ReceivedLoRaMessage()
{
data = new byte[256];
unicastDirectHeader = new UnicastDirectHeader();
unicastRoutedHeader = new UnicastRoutedHeader();
multicastDirectHeader = new MulticastDirectHeader();
multicastRoutedHeader = new MulticastRoutedHeader();
broadcastHeader = new BroadcastHeader();
}
/// <summary>
/// WndProc method that traps all messages sent to the Handle.
/// </summary>
/// <param name="msg">A Windows message.</param>
protected override void WndProc(ref Message msg)
{
base.WndProc(ref msg);
if (!_monitor.Enabled)
{
return;
}
if (msg.Msg == WM_DEVICECHANGE)
{
DeviceEvent evt = (DeviceEvent)msg.WParam.ToInt32();
if (evt == DeviceEvent.Arrival || evt == DeviceEvent.RemoveComplete)
{
BroadcastHeader broadcastHeader = (BroadcastHeader)Marshal.PtrToStructure(msg.LParam, typeof(BroadcastHeader));
if (broadcastHeader.Type == DeviceType.Volume)
{
Volume volume = (Volume)Marshal.PtrToStructure(msg.LParam, typeof(Volume));
if ((volume.Flags & (int)VolumeFlags.Media) != 0)
{
foreach (char drive in DeviceVolumeMonitor.MaskToDrives(volume.Mask).Select(d => d[0]))
{
if (evt == DeviceEvent.Arrival)
{
//Force media inserted event because the drive might already exist but was just mounted (DVD, CD etc.)
if (!_arrivedDrives.Contains(drive))
{
_arrivedDrives.Add(drive);
}
}
else if (evt == DeviceEvent.RemoveComplete)
{
//Force media removed event because the drive might already exist but was just unmounted (DVD, CD etc.)
if (!_removedDrives.Contains(drive))
{
_removedDrives.Add(drive);
}
}
}
//The Arrival and RemoveComplete events might be accompanied by DeviceNodeChanged events so have a delay to filter them out
//Also the known drives list needs to be updated which is handled by the delayed event
_checkDrivesTimer.EnqueueEvent(null, EventArgs.Empty);
}
}
}
else if (evt == DeviceEvent.DeviceNodeChanged)
{
//A removal of a drive might cause multiple DeviceNodeChanged events so use a delay to filter them out
//Also the drive is not yet mounted when receiving this event so delay the event trigger
_checkDrivesTimer.EnqueueEvent(null, EventArgs.Empty);
}
}
}
/// <summary>
/// WndProc method that traps all messages sent to the Handle.
/// </summary>
/// <param name="msg">A Windows message.</param>
protected override void WndProc(ref Message msg)
{
base.WndProc(ref msg);
if (!_monitor.Enabled)
{
return;
}
if (msg.Msg == WM_DEVICECHANGE)
{
DeviceEvent evt = (DeviceEvent)msg.WParam.ToInt32();
if (evt == DeviceEvent.Arrival || evt == DeviceEvent.RemoveComplete)
{
BroadcastHeader broadcastHeader = (BroadcastHeader)Marshal.PtrToStructure(msg.LParam, typeof(BroadcastHeader));
if (broadcastHeader.Type == DeviceType.Volume)
{
Volume volume = (Volume)Marshal.PtrToStructure(msg.LParam, typeof(Volume));
if ((volume.Flags & (int)VolumeFlags.Media) != 0)
{
_monitor.TriggerEvents(evt == DeviceEvent.Arrival, volume.Mask);
}
}
}
}
}
