Microsoft HoloLens Developer???s Guide

Watching for other devices

This is just one side of the story. The other side is listening for incoming connections. In the SetHolographicSpace method, add a call to SetupBluetoothWatcher() and add a new field to the class:

BluetoothLEAdvertisementWatcher _watcher; 

We will use this as follows:

void SetupBluetoothWatcher() 
{ 
    _watcher = new BluetoothLEAdvertisementWatcher(); 
    _watcher.Received += BluetoothWatcher_Connected; 
    var manufacturerData = new BluetoothLEManufacturerData(); 
    manufacturerData.CompanyId = 0xFFFE; 
    _watcher.AdvertisementFilter.Advertisement.ManufacturerData.Add(manufacturerData); 
    _watcher.Start(); 
} 

We create the watcher and add an eventhandler in case we see something. Next we tell the watcher we are only interested in ...