PwshScripts/Bluetooth.ps1 at dev · pa-0/PwshScripts · GitHub

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<#
.SYNOPSIS
  Automate actions for turning bluetooth on/off
.DESCRIPTION
  Control bluetooth radio device
.PARAMETER Status
  Desired state of Bluetooth
.EXAMPLE
 On legacy powersehll,
  Bluetooth.ps1 Off
  Bluetooth.ps1 On

 On powershell 7 (or the core versions),
  Powershell -NoProfile -File ($PwshScriptDir + '\Bluetooth.ps1') On

.NOTES
**REFS**
 - Turn on/off Bluetooth radio/adapter from cmd/powershell in Windows 10
  https://superuser.com/q/1168551/
 - Not used right now, but, in trouble, can also look at,
  http://www.thewindowsclub.com/disable-bluetooth-windows-10

tag: windows-only
#>

[CmdletBinding()] Param (
  [Parameter(Mandatory=$true)] [ValidateSet('Off', 'On')] [string] $NewStatus)

#####################    Function Definition Ends       #####################################
#######################################################################################################

# Start of Main function
function Main() {
  $WirelessService = 'bthserv'

  If ($NewStatus -eq 'On' -and (Get-Service $WirelessService).Status -eq 'Stopped'
    ) {
    # ref for runas: https://stackoverflow.com/questions/7690994/powershell-running-a-command-as-administrator
	  If (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::`
      GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] `
        "Administrator")) {
      $arguments = "Start-Service", $WirelessService
      Start-Process powershell -Verb runAs -ArgumentList $arguments
      # Delay is a PS Script
      # Delay 0 'Please adjust audio level/volume for the headphone.'
      'Please adjust audio level/volume for the headphone.'
      Start-Sleep 1
    }
    else {
      Start-Service $WirelessService
    }
  }

  Add-Type -AssemblyName System.Runtime.WindowsRuntime
  $asTaskGeneric = ([System.WindowsRuntimeSystemExtensions].GetMethods() | Where-Object {
    $_.Name -eq 'AsTask' -and $_.GetParameters().Count -eq 1 -and $_.
    GetParameters()[0].ParameterType.Name -eq 'IAsyncOperation`1' })[0]

  Function Await($WinRtTask, $ResultType) {
      $asTask = $asTaskGeneric.MakeGenericMethod($ResultType)
      $netTask = $asTask.Invoke($null, @($WinRtTask))
      $netTask.Wait(-1) | Out-Null
      $netTask.Result
  }

  [Windows.Devices.Radios.Radio,Windows.System.Devices,ContentType=WindowsRuntime] | Out-Null
  [Windows.Devices.Radios.RadioAccessStatus,Windows.System.Devices,ContentType=WindowsRuntime] |
    Out-Null
  Await ([Windows.Devices.Radios.Radio]::RequestAccessAsync()) (`
    [Windows.Devices.Radios.RadioAccessStatus]) | Out-Null
  $radios = Await ([Windows.Devices.Radios.Radio]::GetRadiosAsync()) ([`
    System.Collections.Generic.IReadOnlyList[Windows.Devices.Radios.Radio]])
  $bluetooth = $radios | Where-Object { $_.Kind -eq 'Bluetooth' }
  [Windows.Devices.Radios.RadioState,Windows.System.Devices,ContentType=WindowsRuntime] | Out-Null
  Await ($bluetooth.SetStateAsync($NewStatus)) ([Windows.Devices.Radios.RadioAccessStatus]) |
    Out-Null

  If ($NewStatus -eq 'Off' -and (Get-Service $WirelessService).Status -eq 'Running') {
    # ref for runas
    # https://stackoverflow.com/questions/7690994/powershell-running-a-command-as-administrator
	  If (-NOT ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::`
      GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] `
        "Administrator")) {
      # Debug, add following in the beginning of arguments list to make powershell wait after command
      # '-NoExit',
      $arguments = 'Stop-Service', '-Force', $WirelessService
      Start-Process powershell -Verb runAs -ArgumentList $arguments
    }
    else {
      Stop-Service -Force $WirelessService
    }
  }
}

Main