Sends a request to activate a control and initiate its single, unambiguous action.
HRESULT Invoke( );
This method has no parameters.
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
IInvokeProvider::Invoke is an asynchronous call and must return immediately without blocking.
The event should be raised before servicing the Invoke request in the following scenarios:
- It is not possible or practical to wait until the action is complete.
- The action requires user interaction.
- The action is time-consuming and will cause the calling client to block for a significant length of time.
|Minimum supported client||Windows XP [desktop apps | UWP apps]|
|Minimum supported server||Windows Server 2003 [desktop apps | UWP apps]|
|Header||uiautomationcore.h (include UIAutomation.h)|