title: Windows API - scan for BLE devices before using BluetoothGATTGetServices
body: <p>I am trying to get BLE ported to Windows.</p>
  <p>I found how to use BluetoothGATTGetServices to get the device services, but I am not sure is there a way to scan for BLE devices and obtain the hDevice handle? I found ways to obtain the handle using paired devices, but in my case the device is not paird.</p>