如何在PowerShell中创建独立窗口的GUI进度条？

我在PowerShell中用以下代码实现了控制台进度条，运行正常，但进度条显示在控制台里。现在想实现点击触发时弹出独立窗口显示GUI进度条，请提供示例代码。

原控制台进度条代码：

Write-Progress -Activity $activity -PercentComplete 0

$totalMinutes = 0.15           # 进度条持续显示时长（分钟）
$timerIntervalSecs = 0.1      # 定时器触发间隔（秒）
$global:continueWhile = $true  # 控制进度条启停的全局变量
$timer = [System.Timers.Timer]::new($timerIntervalSecs * 1000) 

$eventJob = Register-ObjectEvent -InputObject $timer -EventName Elapsed -Action { 
    
  $endTime, $totalMinutes, $activity = $Event.MessageData.EndTime, $Event.MessageData.TotalMinutes, $Event.MessageData.Activity
  $timeLeft = $endTime - (Get-Date)
  $percent = (1 - $timeLeft.TotalSeconds / ($totalMinutes * 60)) * 100
  if ($timeLeft -lt 0) { $percent = 100; $timeLeft = [timespan] 0; $global:continueWhile = $false } # 时长结束后停止进度条
  Write-Progress -Activity $activity -Status "$([math]::Floor($percent))% complete, $([math]::Ceiling($timeLeft.TotalSeconds)) seconds remaining..." -PercentComplete $percent
} -MessageData (@{ EndTime = (Get-Date).AddMinutes($totalMinutes); TotalMinutes = $totalMinutes; Activity = $activity }) 

$timer.Start() # 启动定时器

try { 
    Write-Output "test output"
    while ($continueWhile) {
        Start-Sleep -Seconds 0.5
    }

} finally {
   $timer.Stop()
   Remove-Job $eventJob -Force
   Write-Progress -Activity $activity -Completed
}

以下代码使用Windows Forms创建独立窗口的进度条，支持点击触发启动，模拟进度推进：

# 加载Windows Forms程序集
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

# 创建主窗口
$form = New-Object System.Windows.Forms.Form
$form.Text = "进度窗口"
$form.Size = New-Object System.Drawing.Size(400, 150)
$form.StartPosition = "CenterScreen"
$form.FormBorderStyle = "FixedSingle"
$form.MaximizeBox = $false

# 创建进度条控件
$progressBar = New-Object System.Windows.Forms.ProgressBar
$progressBar.Location = New-Object System.Drawing.Point(20, 30)
$progressBar.Size = New-Object System.Drawing.Size(340, 25)
$progressBar.Maximum = 100
$progressBar.Value = 0

# 创建状态标签
$statusLabel = New-Object System.Windows.Forms.Label
$statusLabel.Location = New-Object System.Drawing.Point(20, 70)
$statusLabel.Size = New-Object System.Drawing.Size(340, 20)
$statusLabel.Text = "准备就绪"

# 创建启动按钮
$startButton = New-Object System.Windows.Forms.Button
$startButton.Location = New-Object System.Drawing.Point(150, 100)
$startButton.Size = New-Object System.Drawing.Size(100, 30)
$startButton.Text = "开始"

# 定时器用于更新进度
$timer = New-Object System.Windows.Forms.Timer
$timer.Interval = 100 # 100毫秒更新一次
$endTime = $null
$totalMinutes = 0.15 # 进度持续时长（分钟）

# 按钮点击事件：启动进度
$startButton.Add_Click({
    $startButton.Enabled = $false
    $endTime = (Get-Date).AddMinutes($totalMinutes)
    $timer.Start()
})

# 定时器触发事件：更新进度条
$timer.Add_Tick({
    $timeLeft = $endTime - (Get-Date)
    if ($timeLeft.TotalSeconds -lt 0) {
        $progressBar.Value = 100
        $statusLabel.Text = "完成！100% complete"
        $timer.Stop()
        $startButton.Enabled = $true
        return
    }
    $percent = [math]::Floor((1 - $timeLeft.TotalSeconds / ($totalMinutes * 60)) * 100)
    $progressBar.Value = $percent
    $statusLabel.Text = "$percent% complete, $([math]::Ceiling($timeLeft.TotalSeconds)) seconds remaining..."
})

# 将控件添加到窗口
$form.Controls.Add($progressBar)
$form.Controls.Add($statusLabel)
$form.Controls.Add($startButton)

# 显示窗口
$form.ShowDialog() | Out-Null

# 清理资源
$timer.Dispose()
$form.Dispose()

代码说明 #

• 基于System.Windows.Forms构建独立GUI窗口，包含进度条、状态标签和启动按钮
• 点击「开始」按钮后启动定时器，定时计算剩余时长并更新进度条数值与状态文本
• 进度完成后自动停止定时器，恢复按钮可用状态
• 窗口居中显示、固定大小且无法最大化，保证进度条展示效果

内容的提问来源于stack exchange，提问作者Halcoaching