AgileEventSource Class

Represents an event that is raised by an agile component, which is a component that can be accessed from any thread. Inherits from EventSource and overrides the Add member function with an additional type parameter for specifying options for how to invoke the agile event.

Syntax

template<
    typename TDelegateInterface,
    typename TEventSourceOptions = Microsoft::WRL::InvokeModeOptions<FireAll>
>
class AgileEventSource :
    public Microsoft::WRL::EventSource<
        TDelegateInterface, TEventSourceOptions>;

Parameters

TDelegateInterface
The interface to a delegate that represents an event handler.

TEventSourceOptions
An InvokeModeOptions structure whose invokeMode field is set to InvokeMode::StopOnFirstError or InvokeMode::FireAll.

Remarks

The vast majority of components in the Windows Runtime are agile components. For more information, see Threading and Marshaling (C++/CX).

Inheritance Hierarchy

EventSource

AgileEventSource

Requirements

Header: event.h

Namespace: Microsoft::WRL

Members

Public Methods

Name	Description
AgileEventSource::Add Method	Appends the agile event handler represented by the specified delegate interface to the set of event handlers for the current AgileEventSource object.

AgileEventSource::Add Method

Appends the event handler represented by the specified delegate interface to the set of event handlers for the current EventSource object.

Syntax

HRESULT Add(
   _In_ TDelegateInterface* delegateInterface,
   _Out_ EventRegistrationToken* token
);

Parameters

delegateInterface
The interface to a delegate object, which represents an event handler.

token
When this operation completes, a handle that represents the event. Use this token as the parameter to the Remove() method to discard the event handler.

Return Value

S_OK if successful; otherwise, an HRESULT that indicates the error.

See also

Microsoft::WRL Namespace