WindowPattern.WindowOpenedEvent Campo
Definizione
Importante
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Identifica l'evento generato quando viene aperta una finestra.
public: static initonly System::Windows::Automation::AutomationEvent ^ WindowOpenedEvent;
public static readonly System.Windows.Automation.AutomationEvent WindowOpenedEvent;
staticval mutable WindowOpenedEvent : System.Windows.Automation.AutomationEvent
Public Shared ReadOnly WindowOpenedEvent As AutomationEvent
Valore del campo
Esempio
Nell'esempio seguente i listener di eventi vengono dichiarati e viene specificato un AutomationEventHandler delegato per WindowOpenedEvent gli eventi e WindowClosedEvent .
///--------------------------------------------------------------------
/// <summary>
/// Register for events of interest.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
///--------------------------------------------------------------------
private void RegisterForAutomationEvents(
AutomationElement targetControl)
{
AutomationEventHandler eventHandler =
new AutomationEventHandler(OnWindowOpenOrClose);
Automation.AddAutomationEventHandler(
WindowPattern.WindowClosedEvent,
targetControl, TreeScope.Element, eventHandler);
Automation.AddAutomationEventHandler(
WindowPattern.WindowOpenedEvent,
targetControl, TreeScope.Element, eventHandler);
}
///--------------------------------------------------------------------
/// <summary>
/// AutomationEventHandler delegate.
/// </summary>
/// <param name="src">Object that raised the event.</param>
/// <param name="e">Event arguments.</param>
///--------------------------------------------------------------------
private void OnWindowOpenOrClose(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 == WindowPattern.WindowOpenedEvent)
{
// TODO: event handling
return;
}
if (e.EventId == WindowPattern.WindowClosedEvent)
{
// TODO: event handling
return;
}
}
'''------------------------------------------------------------------------
''' <summary>
''' Register for events of interest.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
'''------------------------------------------------------------------------
Private Sub RegisterForEvents(ByVal targetControl As AutomationElement)
Dim eventHandler As AutomationEventHandler = AddressOf OnWindowOpenOrClose
Automation.AddAutomationEventHandler(WindowPattern.WindowClosedEvent, _
targetControl, TreeScope.Element, eventHandler)
Automation.AddAutomationEventHandler(WindowPattern.WindowOpenedEvent, _
targetControl, TreeScope.Element, eventHandler)
End Sub
'''------------------------------------------------------------------------
''' <summary>
''' AutomationEventHandler delegate.
''' </summary>
''' <param name="src">Object that raised the event.</param>
''' <param name="e">Event arguments.</param>
'''------------------------------------------------------------------------
Private Sub OnWindowOpenOrClose(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
Return
End Try
If e.EventId Is WindowPattern.WindowOpenedEvent Then
' TODO: event handling
Return
End If
If e.EventId Is WindowPattern.WindowClosedEvent Then
' TODO: event handling
Return
End If
End Sub
Commenti
Questo identificatore viene usato da Automazione interfaccia utente applicazioni client. Automazione interfaccia utente provider devono usare il campo equivalente in WindowPatternIdentifiers.
Si applica a
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