public virtual IBluetoothDeviceInfo[] DiscoverDevices(int maxDevices,
bool authenticated, bool remembered, bool unknown, bool discoverableOnly,
InTheHand.Net.Sockets.BluetoothClient.LiveDiscoveryCallback liveDiscoHandler, object liveDiscoState)
{
#if !NETCF
// In the MSFT+Win32 API there's no simple way to get only the
// in-range-discoverable devices, and thus it can't provide
// 'discoverableOnly' nor live discovery. So, we register for the
// native event whilst we run a normal discovery. We use the
// native event to raise our live event and to gather the devices
// to be included in the discoverableOnly result.
// Note the event seems NOT be raised on WinXP in this case.
// The event (on Win7 at least) raises lots of apparently duplicate
// events, so we need to do some filtering for both results.
var realLiveDiscoHandler = liveDiscoHandler;
//if (realLiveDiscoHandler != null) Debug.Assert(discoverableOnly || unknown, "You want live events from 'remembered'?!?");
bool keepDiscoOnly = false;
if (discoverableOnly)
{
keepDiscoOnly = true;
unknown = authenticated = remembered = true;
discoverableOnly = false;
}
BluetoothWin32Events events;
EventHandler <BluetoothWin32RadioInRangeEventArgs> radioInRangeHandler;
List <IBluetoothDeviceInfo> seenDevices;
if (keepDiscoOnly || realLiveDiscoHandler != null)
{
events = BluetoothWin32Events.GetInstance();
seenDevices = new List <IBluetoothDeviceInfo>();
radioInRangeHandler = delegate(object sender, BluetoothWin32RadioInRangeEventArgs e) {
var newdevice = e.DeviceWindows;
Debug.WriteLine("Radio in range: " + newdevice.DeviceAddress);
bool unique = BluetoothDeviceInfo.AddUniqueDevice(seenDevices, newdevice);
if (unique && realLiveDiscoHandler != null)
{
Debug.WriteLine("Live IS unique.");
realLiveDiscoHandler(newdevice, liveDiscoState);
}
else //COVERAGE
{
Debug.WriteLine("Live is NOT unique ("
+ unique + "," + realLiveDiscoHandler != null + ").");
}
};
events.InRange += radioInRangeHandler;
}
else
{
events = null;
radioInRangeHandler = null;
seenDevices = null;
}
// Don't use the WM live-disco functionality.
liveDiscoHandler = null;
#endif
IBluetoothDeviceInfo[] result;
try {
result = DoDiscoverDevices(maxDevices,
authenticated, remembered, unknown, discoverableOnly,
liveDiscoHandler, liveDiscoState);
} finally {
#if !NETCF
if (events != null && radioInRangeHandler != null)
{
events.InRange -= radioInRangeHandler;
}
#endif
}
#if !NETCF
if (keepDiscoOnly)
{
Debug.Assert(seenDevices != null, "Should have created list 'seenDevices' above!");
Debug.WriteLine("Disco result: " + result.Length + ", liveDevice: " + seenDevices.Count);
result = BluetoothDeviceInfo.Intersect(result, seenDevices);
Debug.WriteLine("Result result: " + result.Length);
}
#endif
return(result);
}
