使用WPF和Powershell的键盘快捷键

Question

在以下代码中：

Add-Type -AssemblyName PresentationFramework
$window = New-Object Windows.Window
$commonKeyEvents = {
    [System.Windows.Input.KeyEventArgs] $e = $args[1]
    if ($e.Key -eq 'ESC') { $this.close() }
    if ($e.Key -eq 'Ctrl+Q') { $this.close() }
}
$window.add_PreViewKeyDown($commonKeyEvents)
$window.ShowDialog() | Out-Null

“Ctrl+Q”部分不起作用，我该如何让它正常工作？

- TNT

Answer 1

这里是您需要的内容：

Add-Type -AssemblyName PresentationFramework
$window = New-Object Windows.Window

$commonKeyEvents = {
    [System.Windows.Input.KeyEventArgs] $e = $args[1]

    if (($e.Key -eq "Q" -and $e.KeyboardDevice.Modifiers -eq "Ctrl") -or
        ($e.Key -eq "ESC")) {            
        $this.Close()
    }
}

$window.Add_PreViewKeyDown($commonKeyEvents)
$window.ShowDialog() | Out-Null

更简单：

Add-Type -AssemblyName PresentationFramework
$window = New-Object Windows.Window

$commonKeyEvents = {
    if (($_.Key -eq "Q" -and $_.KeyboardDevice.Modifiers -eq "Ctrl") -or
        ($_.Key -eq "ESC")) {            
        $this.Close()
    }
}

$window.Add_PreViewKeyDown($commonKeyEvents)
$window.ShowDialog() | Out-Null

- sodawillow

---

非常感谢！这就是我一直缺少的。 - TNT

Answer 2

Add-Type -AssemblyName PresentationFramework
$window = New-Object Windows.Window
$commonKeyEvents = {
    [System.Windows.Input.KeyEventArgs]$e = $args[1]
    if ($e.Key -eq 'Escape') { $this.close() }
    if ([System.Windows.Input.KeyBoard]::Modifiers -eq [System.Windows.Input.ModifierKeys]::Control -and $e.Key -eq 'Q') { $this.close() }
}
$window.add_KeyDown($commonKeyEvents)
$window.ShowDialog() | Out-Null

- f6a4

---

还不错。看起来像是某些C#代码的直接翻译，虽然不太美观，但它能够工作并且也让我学会了如何翻译常见的WPF示例。 - TNT