private static Task <BluetoothAdapter> GetDefaultAsyncImpl()
{
return(Task.Run(() =>
{
if (s_default == null)
{
NativeMethods.BLUETOOTH_FIND_RADIO_PARAMS p = new NativeMethods.BLUETOOTH_FIND_RADIO_PARAMS();
p.dwSize = Marshal.SizeOf(p);
IntPtr radioHandle;
IntPtr findHandle = NativeMethods.BluetoothFindFirstRadio(ref p, out radioHandle);
if (findHandle != IntPtr.Zero)
{
NativeMethods.BLUETOOTH_RADIO_INFO radioInfo = new NativeMethods.BLUETOOTH_RADIO_INFO();
radioInfo.dwSize = Marshal.SizeOf(radioInfo);
if (NativeMethods.BluetoothGetRadioInfo(radioHandle, ref radioInfo) == 0)
{
s_default = new BluetoothAdapter(radioHandle, radioInfo);
}
NativeMethods.BluetoothFindRadioClose(findHandle);
}
}
return s_default;
}));
}
internal BluetoothAdapter(IntPtr radioHandle, NativeMethods.BLUETOOTH_RADIO_INFO radioInfo)
{
_handle = radioHandle;
_radioInfo = radioInfo;
NativeMethods.SetWindowSubclass(Process.GetCurrentProcess().MainWindowHandle, SubclassProc, 1, IntPtr.Zero);
//_messageWindow = new BluetoothMessageWindow();
// register for connection events
NativeMethods.DEV_BROADCAST_HANDLE filter = new NativeMethods.DEV_BROADCAST_HANDLE();
filter.dbch_size = Marshal.SizeOf(filter);
filter.dbch_handle = radioHandle;
filter.dbch_devicetype = NativeMethods.DBT_DEVTYP.HANDLE;
filter.dbch_eventguid = NativeMethods.GUID_BLUETOOTH_L2CAP_EVENT;
_notifyHandle = NativeMethods.RegisterDeviceNotification(Process.GetCurrentProcess().MainWindowHandle, ref filter, NativeMethods.DEVICE_NOTIFY.WINDOWS_HANDLE);
//filter.dbch_eventguid = NativeMethods.GUID_BLUETOOTH_HCI_EVENT;
//int notifyHandle = NativeMethods.RegisterDeviceNotification(Process.GetCurrentProcess().MainWindowHandle, ref filter, NativeMethods.DEVICE_NOTIFY.WINDOWS_HANDLE);
NativeMethods.PostMessage(Process.GetCurrentProcess().MainWindowHandle, 0x401, IntPtr.Zero, IntPtr.Zero);
}
public static BluetoothAdapter GetDefault()
{
if (s_default == null)
{
NativeMethods.BLUETOOTH_FIND_RADIO_PARAMS p = new NativeMethods.BLUETOOTH_FIND_RADIO_PARAMS();
p.dwSize = Marshal.SizeOf(p);
IntPtr radioHandle;
IntPtr findHandle = NativeMethods.BluetoothFindFirstRadio(ref p, out radioHandle);
if (findHandle != IntPtr.Zero)
{
NativeMethods.BLUETOOTH_RADIO_INFO radioInfo = new NativeMethods.BLUETOOTH_RADIO_INFO();
radioInfo.dwSize = Marshal.SizeOf(radioInfo);
if (NativeMethods.BluetoothGetRadioInfo(radioHandle, ref radioInfo) == 0)
{
s_default = new BluetoothAdapter(radioHandle, radioInfo);
}
NativeMethods.BluetoothFindRadioClose(findHandle);
}
}
return(s_default);
}
