PowerShell snippet to check for presence of a Bluetooth radio using P/Invoke

IsBluetoothRadioPresent.ps1

Add-Type -TypeDefinition @"
namespace PInvoke {
	using System;
	using System.Runtime.InteropServices;
	
	[StructLayout(LayoutKind.Sequential)]
	public struct BLUETOOTH_FIND_RADIO_PARAMS
	{
		public UInt32 dwSize;
		
		public void Init()
		{
			this.dwSize = (UInt32)Marshal.SizeOf(typeof(BLUETOOTH_FIND_RADIO_PARAMS));
		}
	}
	
	public static class BluetoothApis
	{
		[DllImport("BluetoothApis.dll", SetLastError=true)]
		public static extern IntPtr BluetoothFindFirstRadio(ref BLUETOOTH_FIND_RADIO_PARAMS pbtfrp, out IntPtr phRadio);
	}
}
"@;

$pbtfrp = New-Object PInvoke.BLUETOOTH_FIND_RADIO_PARAMS
$pbtfrp.Init()
$phRadio = [System.IntPtr]::Zero

exit ([PInvoke.BluetoothApis]::BluetoothFindFirstRadio([ref] $pbtfrp, [ref] $phRadio) -eq [System.IntPtr]::Zero)