Start-PowerShellCommand.ps1
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function Start-PowerShellCommand { <# .Synopsis Starts a PowerShell Command .Description Starts a PowerShell command that has been Registered with Register-PowerShellCommand .Parameter name The name of the command to start .Parameter interval If set, will run the command continuously at the specified interval .Example New-Grid -Rows 2 -Columns 2 -On_Loaded { Register-PowerShellCommand -name UpdateClock -scriptBlock { $stopWatch = $window | Get-ChildControl StopWatch $stopWatch.Content = [Datetime]::Now - $stopWatch.Tag } } { New-Label -Name Stopwatch "0:0:0" -ColumnSpan 2 New-Button -Row 1 -Column 0 Start -On_Click { $window | Get-ChildControl StopWatch | ForEach-Object { $_.Tag = Get-Date } Start-PowerShellCommand "UpdateClock" -interval ([Timespan]::FromMilliseconds(25)) } New-Button -Row 1 -Column 1 Stop -On_Click { Stop-PowerShellCommand "UpdateClock" } } -show #> param( [Parameter(ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true, Position=0)] $name, [Parameter(ValueFromPipelineByPropertyName=$true, Position=1)] [Timespan]$interval = [Timespan]"0" ) process { if ($window) { if ($window.Resources.Scripts.$Name) { if (-not $interval.TotalMilliseconds) { & $window.Resources.Scripts.$Name } else { if ($window.Resources.Timers."Run-$name") { $window.Resources.Timers."Run-$name".Stop() $window.Resources.Timers."Run-$name" = $null } $window.Resources.Timers."Run-$name" = (New-Object Windows.Threading.DispatcherTimer).PSObject.BaseObject $window.Resources.Timers."Run-$name".Interval = $interval $window.Resources.Timers."Run-$name".add_Tick($window.Resources.Scripts.$name) $window.Resources.Timers."Run-$name".Start() } } } } } |