Powershell Key Prompt

KeyPrompt.ps1

#Function GetKeyPress([string]$regexPattern='[0-9]', [string]$message=$null, [int]$timeOutSeconds=0){
Function GetKeyPress( [string]$message=$null, [int]$timeOutSeconds=0){
    $key = $null
    $Host.UI.RawUI.FlushInputBuffer() 
    if (![string]::IsNullOrEmpty($message)){
        Write-Host -NoNewLine $message
    }
    $counter = $timeOutSeconds * 1000 / 250
    while($key -eq $null -and ($timeOutSeconds -eq 0 -or $counter-- -gt 0)){
        if (($timeOutSeconds -eq 0) -or $Host.UI.RawUI.KeyAvailable){                       
            $key_ = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown,IncludeKeyUp")
            #if ($key_.KeyDown -and $key_.Character -match $regexPattern){
            if ($key_.KeyDown){
                $key = $key_                    
            }
        } else {
            Write-Host -NoNewline "."	
            Start-Sleep -m 250  # Milliseconds
        }
    }                       
    if (-not ($key -eq $null)){
        Write-Host -NoNewLine "$($key.Character)" 
    }
    if (![string]::IsNullOrEmpty($message)){
        Write-Host "" # newline
    }       
    #return $(if ($key -eq $null) {$null} else {$key.Character})
    return $(if ($key -eq $null) {$null} else {([int]$($key.Character).tostring())})
}
$locations=@()
$locations+=[pscustomobject]@{id= '0';loc='C:\Temp\'}
$locations+=[pscustomobject]@{id= '1';loc='C:\Users\'}
$locations+=[pscustomobject]@{id= '2';loc='G:\'}
$locations | ft;

$key = GetKeyPress "Choose location:" 5

if ($key -eq $null){
    set-location -path $($locations[0].loc)
} else {
    set-location -path $($locations[$key].loc)

}