private static string GetDeviceName(DEV_BROADCAST_DEVICEINTERFACE dvi)
{
var parts = dvi.dbcc_name.Split('#');
if (parts.Length <= 3) return "(Unkown device): " + dvi.dbcc_name;
var type = parts[0].Substring(parts[0].IndexOf(@"?\", StringComparison.Ordinal) + 2);
var iid = parts[1];
var uid = parts[2];
var regPath = string.Format(@"SYSTEM\CurrentControlSet\Enum\{0}\{1}\{2}", type, iid, uid);
using (var key = Registry.LocalMachine.OpenSubKey(regPath))
{
if (key == null) return "(Unkown device): " + dvi.dbcc_name;
var friendlyName = key.GetValue("FriendlyName");
var devDesc = key.GetValue("DeviceDesc");
if (friendlyName != null) return friendlyName.ToString().Split(';').Last();
if (devDesc != null) return devDesc.ToString().Split(';').Last();
}
return "(Unkown device): " + dvi.dbcc_name;
}
private void RegisterForNotifications()
{
var filter = new DEV_BROADCAST_DEVICEINTERFACE
{
dbcc_size = Marshal.SizeOf(typeof(DEV_BROADCAST_DEVICEINTERFACE)),
dbcc_devicetype = DeviceTypes.DBT_DEVTYP_DEVICEINTERFACE,
// dbcc_classguid = new Guid(0x25dbce51, 0x6c8f, 0x4a72, 0x8a,0x6d,0xb5,0x4c,0x2b,0x4f,0xc8,0x35)
};
var ptr = Marshal.AllocHGlobal(Marshal.SizeOf(filter));
try
{
Marshal.StructureToPtr(filter, ptr, false);
var result = User32.RegisterDeviceNotification(this.Handle, ptr, (int)User32.Flags.DEVICE_NOTIFY_ALL_INTERFACE_CLASSES);
if (result == IntPtr.Zero)
{
throw new Exception("Could not register for device notifications: " + GetLastFormattedError());
}
_notificationHandle = result;
}
finally
{
Marshal.FreeHGlobal(ptr);
}
}
