如何使用 PowerShell 处理进度条？

Question

我想用这个方法截屏

DISM.exe /capture-ffu /imagefile=e:\WinOEM.ffu /capturedrive=\.\PhysicalDrive0 /name:disk0 /description:"Windows 10 FFU"

参考：

https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/deploy-windows-using-full-flash-update--ffu

在powershell中我是这样使用的

& DISM.exe /capture-ffu /imagefile=e:\WinOEM.ffu /capturedrive=\.\PhysicalDrive0 /name:disk0 /description:"Windows 10 FFU"

并且它在捕获时显示命令window。我可以在捕获时创建类似进度条的 GUI 吗？

感谢任何建议。

我已经创建了这个 PowerShell 脚本，但是我不知道应该把这个命令放在哪里

& DISM.exe /capture-ffu /imagefile=e:\WinOEM.ffu /capturedrive=\.\PhysicalDrive0 /name:disk0 /description:"Windows 10 FFU"



Add-Type -assembly System.Windows.Forms

## -- Create The Progress-Bar
$ObjForm = New-Object System.Windows.Forms.Form
$ObjForm.Text = "Image Capturing"
$ObjForm.WindowState = 'Maximized'
$ObjForm.BackColor = "White"

$ObjForm.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::FixedSingle
$ObjForm.StartPosition = [System.Windows.Forms.FormStartPosition]::CenterScreen

## -- Create The Label
$ObjLabel = New-Object System.Windows.Forms.Label
$ObjLabel.Text = "Starting. Please wait ... "
$ObjLabel.Left = 5
$ObjLabel.Top = 10
$ObjLabel.Width = 500 - 20
$ObjLabel.Height = 15
$ObjLabel.Font = "Tahoma"
## -- Add the label to the Form
$ObjForm.Controls.Add($ObjLabel)

$PB = New-Object System.Windows.Forms.ProgressBar
$PB.Name = "PowerShellProgressBar"
$PB.Value = 0
$PB.Style="Continuous"

$System_Drawing_Size = New-Object System.Drawing.Size
$System_Drawing_Size.Width = 700 - 40
$System_Drawing_Size.Height = 20
$PB.Size = $System_Drawing_Size
$PB.Left = 5
$PB.Top = 40
$ObjForm.Controls.Add($PB)

## -- Show the Progress-Bar and Start The PowerShell Script
$ObjForm.Show() | Out-Null
$ObjForm.Focus() | Out-NUll
$ObjLabel.Text = "Starting. Please wait ... "
$ObjForm.Refresh()

Start-Sleep -Seconds 1

## -- Execute The PowerShell Code and Update the Status of the Progress-Bar
# $Result = Get-ChildItem -Path $Path -File -Recurse -Force | Select Name, @{Name="Path";Expression={$_.FullName}}
$Result = & DISM.exe /capture-ffu /imagefile=E:\TEST\capture.ffu /capturedrive=\.\PhysicalDrive0 /name:disk0
$Counter = 0
ForEach ($Item In $Result) {
    ## -- Calculate The Percentage Completed
    $Counter++
    [Int]$Percentage = ($Counter/$Result.Count)*100
    $PB.Value = $Percentage
    $ObjLabel.Text = "Capturing The Image"
    $ObjForm.Refresh()
    Start-Sleep -Milliseconds 150
    # -- $Item.Name
    "`t" + $Item.Path

}

$ObjForm.Close()
Write-Host "`n"

Answer 1

Whosebug 上有很多关于如何解决这个问题的示例。
基本上，您需要制作脚本 event driven, (see e.g.: Powershell Progress Bar in Windows Forms and Start-Sleep pauses entire function) and/or use separate treads (see e.g.: PowerShell: Job Event Action with Form not executed)

有关更多示例，请参阅：https://whosebug.com/questions/linked/7414187?lq=1

一般来说：要在 Loaded 事件上启动脚本，您可以这样做：

Function DISM {
    $Result = & DISM.exe /capture-ffu /imagefile=E:\TEST\capture.ffu /capturedrive=\.\PhysicalDrive0 /name:disk0
    $Counter = 0
    ForEach ($Item In $Result) {
        ...
    }
    $ObjForm.Close()
}

$ObjForm.Add_Loaded({DISM})
$ObjForm.Show()

如何使用 PowerShell 处理进度条？

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