PowerShell中调用WPF生成炫酷窗口实例

怎样在PowerShell中调用WPF，你知道，我也知道；怎样在PowerShell中将很长的.NET类型名称缩短成别名，你知道，我也知道。但是怎样将这两个知识点融汇贯通，写出一个优雅的DEMO，并且让你一眼就能看出，这就是WPF，不是别的，也许你以前就知道，而我直到今天才知道，有种相见恨晚的感觉。

先看一下炫酷的效果吧！

PowerShell之WPF炫酷

# Plik: 4_Demo_v3_Reflection.ps1
#requires -version 3
 
$Akceleratory =
  [PSObject].
  Assembly.
  GetType("System.Management.Automation.TypeAccelerators")
 
Add-Type -AssemblyName PresentationCore, PresentationFramework -PassThru |
  Where-Object IsPublic |
  ForEach-Object {
    $Class = $_
    try {
      $Akceleratory::Add($Class.Name,$Class)
    } catch {
      "Failed to add $($Class.Name) accelerator pointing to $($Class.FullName)"
    }
  }
 
[Window]@{
  OpacityMask = [DrawingBrush]@{
    Drawing = [DrawingGroup]@{
      Children = & {
        $Kolekcja = New-Object DrawingCollection
        $Kolekcja.Add([GeometryDrawing]@{
          Brush = 'Black'
          Geometry = [EllipseGeometry]@{
            radiusX = 0.48
            radiusY = 0.48
            Center = '0.5,0.5'
          }
        })
        $Kolekcja.Add([GeometryDrawing]@{
          Brush = 'Transparent'
          Geometry = [RectangleGeometry]@{
            Rect = '0,0,1,1'
          }
        })
        , $Kolekcja
      }
    }
  }
  Background = [LinearGradientBrush]@{
    Opacity = 0.5
    StartPoint = '0,0.5'
    Endpoint = '1,0.5'
    GradientStops = & {
      $Stopki = New-Object GradientStopCollection
      $Colors = 'Blue', 'Green'
        foreach ($i in 0..1) {
        $Stopki.Add(
          [GradientStop]@{
            Color = $Colors[$i]
            Offset = $i
          }
        )
      }
      , $Stopki
    }      
  }
  Width = 800
  Height = 400
  WindowStyle = 'None'
  AllowsTransparency = $true
  Effect = [DropShadowEffect]@{
    BlurRadius = 10
  }
  TopMost = $true
  Content = & {
    $Stos = [StackPanel]@{
      VerticalAlignment = 'Center'
      HorizontalAlignment = 'Center'
    }
 
    $Stos.AddChild(
      [Label]@{
        Content = 'PowerShell Rocks!'
        FontSize = 80
        FontFamily = 'Consolas'
        Foreground = 'White'
        Effect = [DropShadowEffect]@{
          BlurRadius = 5
        }
      }
    )
    , $Stos
  }
} | ForEach-Object {
  $_.Add_MouseLeftButtonDown({
    $this.DragMove()
  })
  $_.Add_MouseRightButtonDown({
    $this.Close()
  })
  $_.ShowDialog() | Out-Null
}

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