public MainForm()
{
InitializeComponent();
mediaStreamer = new MediaStreamer();
mediaStreamer.StateChanged += MediaStreamer_StateChanged;
//Validate session...
currentSession = Config.Data.Session;
usbManager = new UsbDeviceManager();
usbManager.Init(UsbCategory.VideoCamera);
usbManager.UsbDeviceArrival += UsbManager_UsbDeviceArrival;
usbManager.UsbDeviceMoveComplete += UsbManager_UsbDeviceMoveComplete;
syncContext = SynchronizationContext.Current;
InitControls();
var startupParams = Program.StartupParams;
if (startupParams.IsSystem)
{
var caption = this.Text;
caption = caption + " (" + startupParams.UserName + ")";
this.Text = caption;
}
}
public void Shutdown()
{
logger.Debug("SystemManager::Shutdown() " + Initialized);
//if (!Initialized)
//{
// return;
//}
SystemEvents.DisplaySettingsChanged -= SystemEvents_DisplaySettingsChanged;
SystemEvents.SessionSwitch -= SystemEvents_SessionSwitch;
if (notifyHandles != null && notifyHandles.Count > 0)
{
foreach (var handle in notifyHandles.Values)
{
var result = UsbDeviceManager.UnregisterNotification(handle);
}
}
if (notifyWindow != null)
{
notifyWindow.DestroyWindow();
notifyWindow = null;
}
Initialized = false;
}
bool IWndMessageProcessor.ProcessMessage(Message m)
{
bool result = false;
switch ((uint)m.Msg)
{
case WM.DEVICECHANGE:
{
uint eventCode = (uint)m.WParam;
if (eventCode == DBT.DEVICEARRIVAL || eventCode == DBT.DEVICEREMOVECOMPLETE)
{
if (UsbDeviceManager.TryPtrToDeviceInfo(m.LParam, out UsbDeviceInfo di))
{ // получили информацию о подключенном устройстве в виде:
// \\?\USB#VID_0A89&PID_000C#6&2c24ce2e&0&4#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
bool deviceArraval = (eventCode == DBT.DEVICEARRIVAL);
if (di.ClassGuid == UsbCategory.Audio || di.ClassGuid == UsbCategory.AudioDevice)
{ // update audio sources...
logger.Debug("Audio USB " + (deviceArraval ? "arrival: " : "moved: ") + di.FriendlyName + " {" + di.Name + "}");
VideoSourcesChanged?.Invoke(di.Name);
}
else if (di.ClassGuid == UsbCategory.VideoCamera || di.ClassGuid == UsbCategory.Video)
{ // update video sources...
logger.Debug("Video USB " + (deviceArraval ? "arrival: " : "moved: ") + di.FriendlyName + " {" + di.Name + "}");
AudioSourcesChanged?.Invoke(di.Name);
}
else
{
}
result = true;
}
else
{ //TODO:
//...
}
}
//logger.Debug("WM_DEVICECHANGE");
break;
}
}
return(result);
}
private void RegisterNotification(IntPtr hWnd, Guid classId)
{
if (notifyHandles == null)
{
notifyHandles = new Dictionary <Guid, IntPtr>();
}
var notifyHandle = UsbDeviceManager.RegisterNotification(hWnd, classId);
if (notifyHandle != IntPtr.Zero)
{
notifyHandles.Add(classId, notifyHandle);
}
else
{
logger.Warn($"Fail to register {classId} notifications");
}
}
protected override void WndProc(ref Message m)
{
if (this.Disposing)
{
base.WndProc(ref m);
return;
}
switch ((uint)m.Msg)
{
case WM.DEVICECHANGE:
{
uint eventCode = (uint)m.WParam;
if (eventCode == DBT.DEVICEARRIVAL || eventCode == DBT.DEVICEREMOVECOMPLETE)
{
if (UsbDeviceManager.TryPtrToDeviceName(m.LParam, out string deviceName))
{ // получили информацию о подключенном устройстве в виде:
// \\?\USB#VID_0A89&PID_000C#6&2c24ce2e&0&4#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
if (eventCode == DBT.DEVICEARRIVAL)
{
OnUsbDeviceArrival(deviceName);
}
else
{
OnUsbDeviceMoveComplete(deviceName);
}
}
else
{ //TODO:
//...
}
}
//logger.Debug("WM_DEVICECHANGE");
return;
}
}
base.WndProc(ref m);
}
