Register-PowerShellCommand.ps1
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function Register-PowerShellCommand { <# .Synopsis Registers a PowerShell scriptblock command for use within a window .Description Registers a PowerShell scriptblock for use within a window. The command can be run registered for one time use, it can register anonymously, and it can register for use at a regular interval. .Parameter Name The name of the PowerShell command .Parameter ScriptBlock The script block to run .Parameter Interval The repeat interval of the command. .Parameter Run If set, will start running the command as soon as it is registered .Parameter Once If set, will only run the command once .Example New-Label "$($d = Get-Date ;$d.ToLongDateString() + ' ' + $d.ToLongTimeString())" ` -FontSize 24 -SizeToContent WidthAndHeight ` -On_Loaded { Register-PowerShellCommand -scriptBlock { $d = Get-Date $content = $d.ToLongDateString() + " " + $d.ToLongTimeString() $window.Content.Content = $content } -run -in "0:0:0.5" } -AsJob #> param( [Parameter(Position=0, Mandatory=$true, ValueFromPipelineByPropertyName=$true)] [Alias('Definition')] [ScriptBlock] $ScriptBlock, [Parameter(Position=1, Mandatory=$false, ValueFromPipelineByPropertyName=$true)] [Timespan]$Interval = ([Timespan]0), [Parameter(ValueFromPipelineByPropertyName=$true)] $Name, [switch]$Run, [switch]$Once ) process { $visual = $this if ($window) { if (-not $name) { $name = [GUID]::NewGuid().ToString() } if ($once) { $window.Resources.Scripts.$name = [ScriptBlock]::Create( "$scriptBlock " + { Unregister-PowerShellCommand } + " '$name'" ) } else { $window.Resources.Scripts.$name = $scriptBlock } if ($run) { Start-PowerShellCommand $name -interval $interval } } } } |