AutomationEvent Class
Definition
Important
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Identifies a UI Automation event.
public ref class AutomationEvent : System::Windows::Automation::AutomationIdentifier
public class AutomationEvent : System.Windows.Automation.AutomationIdentifier
type AutomationEvent = class
inherit AutomationIdentifier
Public Class AutomationEvent
Inherits AutomationIdentifier
- Inheritance
Examples
In the following example event handler, the AutomationEvent in the event arguments is compared with the AutomationEvent that identifies the Invoked event.
/// <summary>
/// AutomationEventHandler delegate.
/// </summary>
/// <param name="src">Object that raised the event.</param>
/// <param name="e">Event arguments.</param>
private void OnUIAutomationEvent(object src, AutomationEventArgs e)
{
// Make sure the element still exists. Elements such as tooltips
// can disappear before the event is processed.
AutomationElement sourceElement;
try
{
sourceElement = src as AutomationElement;
}
catch (ElementNotAvailableException)
{
return;
}
if (e.EventId == InvokePattern.InvokedEvent)
{
// TODO Add handling code.
}
else
{
// TODO Handle any other events that have been subscribed to.
}
}
''' <summary>
''' AutomationEventHandler delegate.
''' </summary>
''' <param name="src">Object that raised the event.</param>
''' <param name="e">Event arguments.</param>
Private Sub OnUIAutomationEvent(ByVal src As Object, ByVal e As AutomationEventArgs)
' Make sure the element still exists. Elements such as tooltips can disappear
' before the event is processed.
Dim sourceElement As AutomationElement
Try
sourceElement = DirectCast(src, AutomationElement)
Catch ex As ElementNotAvailableException
Exit Sub
End Try
If e.EventId Is InvokePattern.InvokedEvent Then
' TODO Add handling code.
Else
End If
' TODO Handle any other events that have been subscribed to.
Console.WriteLine("Event: " & e.EventId.ProgrammaticName)
End Sub
Remarks
Identifiers of these types are found as fields in various classes to identify events; for example, InvokedEvent. They are also found in the event arguments passed to UI Automation clients.
It is not possible to create custom events.
Properties
Id |
Gets the underlying numerical identifier. (Inherited from AutomationIdentifier) |
ProgrammaticName |
Gets the registered programmatic name. (Inherited from AutomationIdentifier) |
Methods
CompareTo(Object) |
Compares this AutomationIdentifier with another AutomationIdentifier. (Inherited from AutomationIdentifier) |
Equals(Object) |
Returns a value indicating whether the supplied AutomationIdentifier is equivalent to this AutomationIdentifier. (Inherited from AutomationIdentifier) |
GetHashCode() |
Returns the hash code for this UI Automation identifier. (Inherited from AutomationIdentifier) |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
LookupById(Int32) |
Retrieves an AutomationEvent that encapsulates the specified numerical identifier. |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
ToString() |
Returns a string that represents the current object. (Inherited from Object) |
Applies to
See also
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