Toast通知触发程序后台启动，如何设置为前台激活？

编写了带自定义按钮和协议的PowerShell Toast通知脚本，点击按钮后目标BAT程序在后台启动，无法获取前台焦点，如何调整实现前台启动？

自定义协议注册表配置 #

$1 = @(
        [pscustomobject]@{name = 'Time'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\Time_sleep.BAT'},
        [pscustomobject]@{name = 'Zenek'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\email.bat'},
        [pscustomobject]@{name = 'NetEx'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\ne.bat'},
        [pscustomobject]@{name = 'Busy'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\busy.bat'},
        [pscustomobject]@{name = 'Shorts'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\Shortcuts.bat'}
    )
     $1 | % {
$RegPath = "HKCU:\Software\Classes\$($_.name)\"
New-Item -Path "$RegPath" -Force |Out-Null
New-ItemProperty -Path "$RegPath" -Name "(Default)" -Value "URL:$($_.name) Protocol" -PropertyType "String"|Out-Null
New-ItemProperty -Path "$RegPath" -Name "URL Protocol" -Value "" -PropertyType "String"|Out-Null
New-Item -Path "$RegPath\shell\open\command" -Force|Out-Null
New-ItemProperty -Path "$RegPath\shell\open\command" -Name "(Default)" -Value $_.Link -PropertyType "String"|Out-Null
    }

示例BAT文件内容（SHORTCUTS.BAT） #

@echo off
color b
echo List of shortcuts
echo BUSY      CTRL + ALT + C
echo MAIL      CTRL + ALT + L
echo NETEXT    CTRL + ALT + N
echo HIBERNATE CTRL + ALT + H
echo TIME      CTRL + ALT + T
echo ASSOC     CTRL + ALT + P
echo DRIVES    CTRL + ALT + D
pause

Toast通知脚本 #

function Show-Toast{
[cmdletbinding()]
param(
[Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, Position = 0)]
[string]$Title,
[Parameter(Mandatory=$true, ValueFromPipelineByPropertyName=$true, Position = 1)]
[string]$message
)

[Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime]|Out-Null
[Windows.UI.Notifications.ToastNotification, Windows.UI.Notifications, ContentType = WindowsRuntime]|Out-Null
[Windows.Data.Xml.Dom.XmlDocument, Windows.Data.Xml.Dom.XmlDocument, ContentType = WindowsRuntime]|out-null

$guid = '{1AC14E77-02E7-4E5D-B744-2EB1AE5198B7}\WindowsPowerShell\v1.0\powershell.exe'
$ToastTitle = ""
$Signature = ""
$CustomHello = "Hello {0}.{1}" -f ($env:USERNAME[0].ToString()).ToUpper(), (($env:USERNAME.ToString()).Substring(1)).ToUpper()
$BannerImage = 'C:\Users\XXX\Desktop\Personal\Scripts\Toast\lake.jpg'

$template = @"
<toast scenario="reminder">
    <visual>
        <binding template = "ToastGeneric">
         <text>$CustomHello</text>
            <text>$ToastTitle</text>
            <text placement="attribution">$Signature</text>
        
        <group>
                <subgroup>
                    <text hint-style="title" hint-wrap="true" >$Title</text>
                </subgroup>
            </group>
            <group>
                <subgroup>
                    <text hint-style="base" hint-wrap="true" >$message</text>
                </subgroup>
            </group>
            <group>
                <subgroup>
                    <text hint-style="captionSubtle" hint-wrap="true" >$Title</text>
                </subgroup>
            </group>
            <group>
                <subgroup>
                    <text hint-style="body" hint-wrap="true" >$message</text>
                </subgroup>
            </group>
            <image placement="hero" src="$BannerImage"/>

        </binding>
    </visual>
        <actions>
            <action arguments="Zenek:" content="Zenek" activationType="protocol" />
            <action arguments="NetEx:" content="NetEx" activationType="protocol"/>
            <action arguments="Busy:" content="Busy" activationType="protocol"/>
            <action arguments="Time:" content="Time" activationType="protocol"/>
            <action arguments="shorts:" content="Shorts" activationType="protocol"/>
        
            </actions>
</toast>
"@

$xml = [Windows.Data.Xml.Dom.XmlDocument]::new()
$xml.LoadXml($template)
$toast =  [Windows.UI.Notifications.ToastNotification]::new($xml)
[Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier($guid).Show($toast)
}
 [pscustomobject]@{
 Title = "Test"
 message = "Another"
 }| Show-Toast 

注：原脚本中Toast XML模板的<toast scenario="reminder">>多了一个右尖括号，已修正为<toast scenario="reminder">，避免XML解析错误。

当前与期望状态 #

• 当前启动状态（后台运行）：
  
• 期望启动状态（前台激活）：
  

解决方案 #

方法1：修改注册表协议命令，强制前台启动CMD窗口 #

直接调用BAT时系统默认后台启动cmd.exe，修改注册表命令，用start参数强制打开前台窗口：

$1 = @(
        [pscustomobject]@{name = 'Time'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\Time_sleep.BAT'},
        [pscustomobject]@{name = 'Zenek'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\email.bat'},
        [pscustomobject]@{name = 'NetEx'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\ne.bat'},
        [pscustomobject]@{name = 'Busy'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\busy.bat'},
        [pscustomobject]@{name = 'Shorts'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\Shortcuts.bat'}
    )
     $1 | % {
$RegPath = "HKCU:\Software\Classes\$($_.name)\"
New-Item -Path "$RegPath" -Force |Out-Null
New-ItemProperty -Path "$RegPath" -Name "(Default)" -Value "URL:$($_.name) Protocol" -PropertyType "String"|Out-Null
New-ItemProperty -Path "$RegPath" -Name "URL Protocol" -Value "" -PropertyType "String"|Out-Null
New-Item -Path "$RegPath\shell\open\command" -Force|Out-Null
# 修改启动命令，用start强制前台窗口
$launchCommand = "cmd.exe /c start """" /max `"$($_.Link)`""""
New-ItemProperty -Path "$RegPath\shell\open\command" -Name "(Default)" -Value $launchCommand -PropertyType "String"|Out-Null
    }

参数说明：

• start ""：start命令需要标题参数，空字符串避免路径含空格时出错
• /max：可选，最大化窗口启动，不需要可改为/normal

方法2：用PowerShell脚本封装，强制激活窗口 #

若需要更灵活的窗口控制，可写辅助脚本调用BAT并激活窗口：

1. 创建Launch-BatForeground.ps1脚本：

param([string]$BatPath)
# 启动BAT文件
$process = Start-Process -FilePath "cmd.exe" -ArgumentList "/c `"$BatPath`"" -PassThru
# 等待窗口创建
Start-Sleep -Milliseconds 500
# 调用Win32API激活窗口
Add-Type @"
using System;
using System.Runtime.InteropServices;
public class Win32 {
    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool SetForegroundWindow(IntPtr hWnd);
}
"@
[Win32]::SetForegroundWindow($process.MainWindowHandle)

2. 修改注册表配置，让协议调用该脚本：

$1 = @(
        [pscustomobject]@{name = 'Time'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\Time_sleep.BAT'},
        [pscustomobject]@{name = 'Zenek'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\email.bat'},
        [pscustomobject]@{name = 'NetEx'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\ne.bat'},
        [pscustomobject]@{name = 'Busy'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\busy.bat'},
        [pscustomobject]@{name = 'Shorts'; Link = 'C:\Users\XXX\Desktop\Personal\Scripts\Shortcuts.bat'}
    )
     $1 | % {
$RegPath = "HKCU:\Software\Classes\$($_.name)\"
New-Item -Path "$RegPath" -Force |Out-Null
New-ItemProperty -Path "$RegPath" -Name "(Default)" -Value "URL:$($_.name) Protocol" -PropertyType "String"|Out-Null
New-ItemProperty -Path "$RegPath" -Name "URL Protocol" -Value "" -PropertyType "String"|Out-Null
New-Item -Path "$RegPath\shell\open\command" -Force|Out-Null
$launchCommand = "powershell.exe -WindowStyle Hidden -ExecutionPolicy Bypass -File `"C:\Users\XXX\Desktop\Personal\Scripts\Launch-BatForeground.ps1`" -BatPath `"$($_.Link)`""
New-ItemProperty -Path "$RegPath\shell\open\command" -Name "(Default)" -Value $launchCommand -PropertyType "String"|Out-Null
    }

内容的提问来源于stack exchange，提问作者Nawad-sama