Update-WPFJob.ps1
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function Update-WPFJob { <# .Synopsis Updates a running WPF Job by running a PowerShell script .Description Runs a PowerShell script within a WPF Job and returns the results. This enables two way communication with WPF Jobs. You can use the $Window variable and Get-ChildControl to talk to individual controls within a UI. .Example $Job = New-Label "Hello World" -AsJob $job | Update-WPFJob { $window.Close() } #> [CmdletBinding(DefaultParameterSetName='NoParameters')] param( # The Job to update [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [Management.Automation.Job] $Job, [Parameter(Position=0)] [ScriptBlock] $Command, [Parameter(ParameterSetName='IDictionary', Position=1)] [Collections.IDictionary] $Dictionary, [Parameter(ParameterSetName='IList', Position=1)] [Collections.IList] $List, [switch]$Asynchronously ) process { $realCommand = ([ScriptBlock]::Create(@" Initialize-EventHandler -resource (Get-Resource `$Window.Content) -parent `$Window.Content `$ErrorActionPreference = 'stop' $Command trap { . Write-WPFError `$_ continue } "@)) if ($job.InvokeScriptInJob) { switch ($psCmdlet.ParameterSetName) { NoParameters { $job.InvokeScriptInJob($realCommand, $null, $Asynchronously) } List { $job.InvokeScriptInJob($realCommand, $List, $Asynchronously) } Dictionary { $job.InvokeScriptInJob($realCommand, $Dictionary, $Asynchronously) } } } } } |