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NF:uiautomationclient.IUIAutomationEventHandlerGroup.AddPropertyChangedEventHandler |
IUIAutomationEventHandlerGroup::AddPropertyChangedEventHandler (uiautomationclient.h) |
Registers a method that handles a property-changed event. |
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winauto\uiauto_iuiautomationeventhandlergroup_addpropertychangedeventhandler.htm |
WinAuto |
186958B6-6D13-41F2-B6E5-A4C36D1B8451 |
12/05/2018 |
AddPropertyChangedEventHandler, AddPropertyChangedEventHandler method [Windows Accessibility], AddPropertyChangedEventHandler method [Windows Accessibility],IUIAutomationEventHandlerGroup interface, IUIAutomationEventHandlerGroup interface [Windows Accessibility],AddPropertyChangedEventHandler method, IUIAutomationEventHandlerGroup.AddPropertyChangedEventHandler, IUIAutomationEventHandlerGroup::AddPropertyChangedEventHandler, uiautomationclient/IUIAutomationEventHandlerGroup::AddPropertyChangedEventHandler, winauto.uiauto_iuiautomationeventhandlergroup_addpropertychangedeventhandler |
uiautomationclient.h |
UIAutomation.h |
Windows |
Windows 10, version 1809 [desktop apps only] |
Windows Server, version 1709 [desktop apps only] |
UIAutomationClient.idl |
Windows |
RS5, 19H1 |
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Registers a method that handles a property-changed event.
Important Microsoft UI Automation clients should use the handler group methods to register event listeners instead of individual event registration methods defined in the various IUIAutomation namespaces.
The scope of events to be handled; that is, whether they are on the element itself, or on its ancestors and children.
A pointer to a cache request, or NULL if no caching is wanted.
A pointer to the object that handles the event.
A pointer to the UI Automation properties of interest. For a list of property IDs, see Property Identifiers.
The number of properties being monitored.
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Before implementing an event handler, you should be familiar with the threading issues described in Understanding Threading Issues.