private bool IsDesiredDevice(IntPtr lParam)
{
var hdr = (Native.DEV_BROADCAST_HDR)Marshal.PtrToStructure(lParam, typeof(Native.DEV_BROADCAST_HDR));
if (hdr.dbcc_devicetype == (uint)_deviceType)
{
if (_deviceType == Native.DeviceType.DBT_DEVTYP_DEVICEINTERFACE)
{
Native.DEV_BROADCAST_DEVICEINTERFACE deviceInterface =
(Native.DEV_BROADCAST_DEVICEINTERFACE)Marshal.PtrToStructure(lParam, typeof(Native.DEV_BROADCAST_DEVICEINTERFACE));
var str = Encoding.Default.GetString(deviceInterface.dbcc_classguid);
var guid = new Guid(deviceInterface.dbcc_classguid);
if (guid.ToString() == DEVICE_INTERFACE_GUID)
{
return(true);
}
}
else
{
//TODO: other device type
}
}
return(false);
}
public void RegisterNotificationFor(IntPtr recipientHandle, Native.DeviceType deviceType)
{
_deviceType = deviceType;
IntPtr notificationFilter = IntPtr.Zero;
switch (_deviceType)
{
case Native.DeviceType.DBT_DEVTYP_DEVICEINTERFACE:
{
Native.DEV_BROADCAST_DEVICEINTERFACE di =
new Native.DEV_BROADCAST_DEVICEINTERFACE();
var size = Marshal.SizeOf(di);
di.dbcc_size = (uint)size;
di.dbcc_devicetype = (int)Native.DeviceType.DBT_DEVTYP_DEVICEINTERFACE;
di.dbcc_reserved = 0;
di.dbcc_classguid = new Guid(DEVICE_INTERFACE_GUID).ToByteArray();
notificationFilter = Marshal.AllocHGlobal(size);
Marshal.StructureToPtr(di, notificationFilter, true);
break;
}
case Native.DeviceType.DBT_DEVTYP_HANDLE:
{
Native.DEV_BROADCAST_HANDLE di =
new Native.DEV_BROADCAST_HANDLE();
var size = Marshal.SizeOf(di);
di.dbch_size = (uint)size;
di.dbch_devicetype = (int)Native.DeviceType.DBT_DEVTYP_HANDLE;
di.dbch_reserved = 0;
//https://msdn.microsoft.com/en-us/library/windows/desktop/aa363217(v=vs.85).aspx
di.dbch_handle = IntPtr.Zero; //Be sure to set the dbch_handle member to the device handle obtained from the CreateFile function.
di.dbch_hdevnotify = IntPtr.Zero;
//TODO
//di.dbch_eventguid =
//di.dbch_nameoffset =
//di.dbch_data =
break;
}
case Native.DeviceType.DBT_DEVTYP_OEM:
{
//TODO
break;
}
case Native.DeviceType.DBT_DEVTYP_PORT:
{
//TODO
break;
}
case Native.DeviceType.DBT_DEVTYP_VOLUME:
{
//TODO
break;
}
default:
break;
}
if (notificationFilter != IntPtr.Zero)
{
_hdNotify = Native.RegisterDeviceNotification(recipientHandle, notificationFilter, (uint)Native.DEVICE_NOTIFY.DEVICE_NOTIFY_WINDOW_HANDLE);
}
}