/// <inheritdoc />
public override AutomationEventHandlerBase RegisterAutomationEvent(EventId @event, TreeScope treeScope, Action <SHAutomationElement, EventId> action)
{
var eventHandler = new UIA3AutomationEventHandler(this, @event, action);
Automation.NativeAutomation.AddAutomationEventHandler(@event.Id, NativeElement, (UIA.TreeScope)treeScope, null, eventHandler);
return(eventHandler);
}
/// <summary>Request notififications about <paramref name="eventId" /></summary>
/// <param name="element">Target element</param>
/// <param name="eventId">Event to be notified about</param>
/// <param name="treeScope">Scope to monitor</param>
/// <param name="autoRelease">Whether to automatically unregister event when object is Disposed</param>
/// <param name="action">Callback</param>
/// <returns></returns>
protected AutomationEventHandlerBase RegisterAutomationEventInternal(
AutomationElement element,
EventId eventId,
TreeScope treeScope,
bool autoRelease,
Action <AutomationElement, EventId> action)
{
var automationElement = element ?? UIAuto.GetDesktop();
var desktopEl = (UIA3FrameworkAutomationElement)automationElement.FrameworkAutomationElement;
var eventHandler = new UIA3AutomationEventHandler(desktopEl,
eventId,
action);
UIAuto.NativeAutomation.AddAutomationEventHandler(
eventId.Id,
desktopEl.NativeElement,
(global::Interop.UIAutomationClient.TreeScope)treeScope,
null,
eventHandler
);
if (autoRelease)
{
_registeredEvents.Add((automationElement, eventHandler));
return(null);
}
return(null);
}