How to detect Bluetooth activated laptops in range in Windows using C#

Question

I'm interested in creating a wireless network of laptops using Bluetooth developed in C#.

I want to get the list of Bluetooth activated devices in range ( preferable computers, not dongles, headsets or phones). I don't think I need to use a Bluetooth adapter specific stack coz I have seen Windows searching for Bluetooth devices in range. How can I run such a search in my C# app and list the computers in range?

Please help me to do this, also let me know if my effort is wrong. Thank you.

Answer 1

There is a nice C# Bluetooth library available in 32feet.NET .

If you have no need for any of the additional features it offers and you wish to do the P/Invoke on your own, documentation can be found here ; specifically the BluetoothFindFirstDevice and BluetoothFindNextDevice for device discovery.

Additionally, you can use windows sockets to do device/service discovery. Information on that can be found here .

If you wish to specifically filter out types of Bluetooth devices, you will want to look at the ulClassOfDevice field in the BluetoothDeviceInfo .