public static bool RegisterDeviceNotification(IntPtr formHandle, ref IntPtr notificationHandle)
{
Win32.DEV_BROADCAST_DEVICEINTERFACE dbi = new Win32.DEV_BROADCAST_DEVICEINTERFACE();
int size = 0;
IntPtr Buffer = IntPtr.Zero;
Guid HidGuid = new Guid();
Win32.HidD_GetHidGuid(ref HidGuid);
size = Marshal.SizeOf(dbi);
dbi.dbcc_size = size;
dbi.dbcc_devicetype = Win32.DBT_DEVTYP_DEVICEINTERFACE;
dbi.dbcc_reserved = 0;
dbi.dbcc_classguid = HidGuid;
dbi.dbcc_name = 0;
Buffer = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(dbi, Buffer, true);
notificationHandle = Win32.RegisterDeviceNotification(formHandle, Buffer, Win32.DEVICE_NOTIFY_WINDOW_HANDLE);
if (notificationHandle.ToInt32() == IntPtr.Zero.ToInt32())
{
return(false);
}
return(true);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case MixerNative.MM_MIXM_LINE_CHANGE:
_audio.HandleLineChanged(m.WParam, (uint)m.LParam);
break;
case MixerNative.MM_MIXM_CONTROL_CHANGE:
_audio.HandleLineControlChanged(m.WParam, (uint)m.LParam);
break;
case Win32.WM_DEVICECHANGE:
Win32.DEV_BROADCAST_HDR structDecription;
switch ((int)m.WParam)
{
case Win32.DBT_DEVICEARRIVAL:
structDecription = (Win32.DEV_BROADCAST_HDR)m.GetLParam(typeof(Win32.DEV_BROADCAST_HDR));
if (structDecription.dbcc_devicetype == Win32.DBT_DEVTYP_DEVICEINTERFACE)
{
Win32.DEV_BROADCAST_DEVICEINTERFACE devInterface = (Win32.DEV_BROADCAST_DEVICEINTERFACE)m.GetLParam(typeof(Win32.DEV_BROADCAST_DEVICEINTERFACE));
if (devInterface.dbcc_classguid == Win32.MEDIA_CLASS_GUID)
{
new EmptyDelegate(_audio.HandleDeviceAdding).BeginInvoke(null, null);
}
}
break;
case Win32.DBT_DEVICEREMOVECOMPLETE:
structDecription = (Win32.DEV_BROADCAST_HDR)m.GetLParam(typeof(Win32.DEV_BROADCAST_HDR));
if (structDecription.dbcc_devicetype == Win32.DBT_DEVTYP_DEVICEINTERFACE)
{
Win32.DEV_BROADCAST_DEVICEINTERFACE devInterface = (Win32.DEV_BROADCAST_DEVICEINTERFACE)m.GetLParam(typeof(Win32.DEV_BROADCAST_DEVICEINTERFACE));
if (devInterface.dbcc_classguid == Win32.MEDIA_CLASS_GUID)
{
new EmptyDelegate(_audio.HandleDeviceRemoving).BeginInvoke(null, null);
}
}
break;
}
break;
}
base.WndProc(ref m);
}
/// <summary>
/// Функция, которая забирает у библиотеки сервиса C# управление обработчиком сервиса и передаёт его нашей функции
/// </summary>
private void RegisterDeviceNotification()
{
_serviceCallback = new Win32.ServiceControlHandlerEx(ServiceControlHandler);
Win32.RegisterServiceCtrlHandlerEx(ServiceName, _serviceCallback, IntPtr.Zero);
Win32.DEV_BROADCAST_DEVICEINTERFACE deviceInterface = new Win32.DEV_BROADCAST_DEVICEINTERFACE();
int size = Marshal.SizeOf(deviceInterface);
deviceInterface.dbcc_size = size;
deviceInterface.dbcc_devicetype = Win32.DBT_DEVTYP_DEVICEINTERFACE;
IntPtr buffer = default(IntPtr);
buffer = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(deviceInterface, buffer, true);
_deviceEventHandle = Win32.RegisterDeviceNotification(ServiceHandle, buffer, Win32.DEVICE_NOTIFY_SERVICE_HANDLE | Win32.DEVICE_NOTIFY_ALL_INTERFACE_CLASSES);
if (_deviceEventHandle == IntPtr.Zero)
{
// TODO handle error
}
}
private void RegisterDeviceNotification()
{
Win32.DEV_BROADCAST_DEVICEINTERFACE deviceInterface = new Win32.DEV_BROADCAST_DEVICEINTERFACE();
var size = Marshal.SizeOf(deviceInterface);
deviceInterface.dbcc_devicetype = Win32.DBT_DEVTYP_DEVICEINTERFACE;
deviceInterface.dbcc_reserved = 0;
deviceInterface.dbcc_classguid = Win32.MEDIA_CLASS_GUID;
deviceInterface.dbcc_size = size;
IntPtr buffer = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(deviceInterface, buffer, true);
_deviceEventHandle = Win32.RegisterDeviceNotification(Handle, buffer, Win32.DEVICE_NOTIFY_WINDOW_HANDLE);
if (_deviceEventHandle == IntPtr.Zero)
{
throw new InvalidOperationException("Failed to register for notifications about devices changes");
}
}
public static void RegisterHidNotification(IntPtr handle)
{
Win32.DEV_BROADCAST_DEVICEINTERFACE dbi = new
Win32.DEV_BROADCAST_DEVICEINTERFACE();
int size = Marshal.SizeOf(dbi);
dbi.dbcc_size = size;
dbi.dbcc_devicetype = Win32.DBT_DEVTYP_DEVICEINTERFACE;
dbi.dbcc_reserved = 0;
dbi.dbcc_classguid = Win32.GUID_DEVINTERFACE_HID;
dbi.dbcc_name = "";
IntPtr buffer = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(dbi, buffer, true);
IntPtr r = Win32.RegisterDeviceNotification(handle, buffer,
Win32.DEVICE_NOTIFY_WINDOW_HANDLE | Win32.DEVICE_NOTIFY_ALL_INTERFACE_CLASSES);
if (r == IntPtr.Zero)
{
}
}
/// <summary>
/// 注册加密锁事件插拨通知
/// </summary>
void RegisterDeviceNotification()
{
Win32.DEV_BROADCAST_DEVICEINTERFACE dbi = new
Win32.DEV_BROADCAST_DEVICEINTERFACE();
int size = Marshal.SizeOf(dbi);
dbi.dbcc_size = size;
dbi.dbcc_devicetype = Win32.DBT_DEVTYP_DEVICEINTERFACE;
dbi.dbcc_reserved = 0;
dbi.dbcc_classguid = Win32.GUID_DEVINTERFACE_USB_DEVICE;
dbi.dbcc_name = 0;
IntPtr buffer = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(dbi, buffer, true);
WindowInteropHelper helper = new WindowInteropHelper(this);
IntPtr ptr = helper.Handle;
IntPtr r = Win32.RegisterDeviceNotification(ptr, buffer,
Win32.DEVICE_NOTIFY_WINDOW_HANDLE);
if (r == IntPtr.Zero)
MessageBox.Show(Win32.GetLastError().ToString());
}
