Method InvokeHandler

InvokeHandler(ref object, Delegate, Arguments)

Invoke the Invoke semantic on the next node in the chain of invocation.

Declaration

object InvokeHandler(ref object instance, Delegate handler, Arguments arguments)

Parameters

Type	Name	Description
object	instance	Target instance on which the event is defined (`null` if the event is static).
Delegate	handler	Handler to be removed from the event.
Arguments	arguments	Arguments with which the `handler` should be invoked.

Returns

Type	Description
object	The value returned by the handler.

Remarks

The instance parameter is passed by reference so that instance methods of value types ( struct in C#) are allowed to change the value of the instance.

note

The Invoke Event Handler semantic is different from normal event firing. Indeed, when you fire an event, all handlers that were added to this event are fired. However, the current method invokes only a single handler: the one passed to the handler parameter.