问题描述
我正在准备使用Powershell脚本检测焦点变化,而我的代码是
start calc
Write-Host "Loading MS UIA assemblies"
[void][System.Reflection.Assembly]::LoadWithPartialName("UIAutomationClient")
[void][System.Reflection.Assembly]::LoadWithPartialName("UIAutomationTypes")
[void][System.Reflection.Assembly]::LoadWithPartialName("UIAutomationProvider")
[void][System.Reflection.Assembly]::LoadWithPartialName("UIAutomationClientsideProviders")
try
{
# WORKAROUND: There is a weird bug: first call fails ...
[Windows.Automation.ClientSettings]::RegisterClientSideProviderAssembly([UIAutomationClientsideProviders.UIAutomationClientSideProviders].Assembly.GetName())
}
catch {}
# ... second call succeeds:
[Windows.Automation.ClientSettings]::RegisterClientSideProviderAssembly([UIAutomationClientsideProviders.UIAutomationClientSideProviders].Assembly.GetName())
$focusedElem = [Windows.Automation.AutomationElement]::FocusedElement #this one work fine
Write-Host "name: " $focusedElem.Current.Name
Write-Host "ControlType: " $focusedElem.Current.ControlType
Write-Host "ProcessId: " $focusedElem.Current.ProcessId
$onFocusChange = { # this dose not fired !!!!
param([Sytem.Object]$src,[Windows.Automation.AutomationFocusChangedEventArgs]$e)
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}
$focusChangeHandler = [Windows.Automation.AutomationFocusChangedEventHandler]($onFocusChange)
[Windows.Automation.Automation]::AddAutomationFocusChangedEventHandler($focusChangeHandler)
Start-Sleep -Seconds 5 #durring this sleep i change the focused window,but nothing happen :(
[Windows.Automation.Automation]:: RemoveAutomationFocusChangedEventHandler($focusChangeHandler)
您是否知道此脚本为什么不起作用,或者是否需要监视Powershell中没有外部工具的焦点更改?
解决方法
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