AutomationEventArgs(AutomationEvent) 构造函数

定义

命名空间:

System.Windows.Automation

程序集:

UIAutomationTypes.dll

初始化 AutomationEventArgs 类的新实例。

public:
 AutomationEventArgs(System::Windows::Automation::AutomationEvent ^ eventId);

public AutomationEventArgs (System.Windows.Automation.AutomationEvent eventId);

new System.Windows.Automation.AutomationEventArgs : System.Windows.Automation.AutomationEvent -> System.Windows.Automation.AutomationEventArgs

Public Sub New (eventId As AutomationEvent)

参数

eventId

AutomationEvent

事件标识符。

示例

以下代码演示UI 自动化提供程序如何创建AutomationEventArgs和引发事件。

/// <summary>
/// Raises an event when a control is invoked.
/// </summary>
/// <param name="provider">The UI Automation provider for the control.</param>
private void RaiseInvokeEvent(IRawElementProviderSimple provider)
{
    if (AutomationInteropProvider.ClientsAreListening)
    {
        AutomationEventArgs args = 
            new AutomationEventArgs(InvokePatternIdentifiers.InvokedEvent);
        AutomationInteropProvider.RaiseAutomationEvent(InvokePatternIdentifiers.InvokedEvent, 
            provider, args);
    }
}

''' <summary>
''' Raises an event when a control is invoked.
''' </summary>
''' <param name="provider">The UI Automation provider for the control.</param>
Private Sub RaiseInvokeEvent(ByVal provider As IRawElementProviderSimple)
    If AutomationInteropProvider.ClientsAreListening Then
        Dim args As New AutomationEventArgs(InvokePatternIdentifiers.InvokedEvent)
        AutomationInteropProvider.RaiseAutomationEvent(InvokePatternIdentifiers.InvokedEvent, provider, args)
    End If

End Sub