TcHmiSrvRequestListener Class

Provides a listener to invoke read-write requests and subscriptions.

Inheritance Hierarchy

System.Object
  TcHmiSrv.TcHmiSrvListener
    TcHmiSrv.TcHmiSrvRequestListenerBase
      TcHmiSrv.TcHmiSrvRequestListener
Namespace: TcHmiSrv
Assembly: TcHmiSrvExtNet (in TcHmiSrvExtNet.dll) Version: 3.0.0.0

public class TcHmiSrvRequestListener : TcHmiSrvRequestListenerBase, 
    IExternalCaller<string>

The TcHmiSrvRequestListener type exposes the following members.

	Name	Description
	TcHmiSrvRequestListener	Initializes a new instance of the TcHmiSrvRequestListener class

	Name	Description
	Type	(Inherited from TcHmiSrvListener.)

	Name	Description
	Dispose.	(Inherited from TcHmiSrvListener.)
	Dispose(Boolean)	(Inherited from TcHmiSrvRequestListenerBase.)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

	Name	Description
	OnRequest	Called when a client requests a symbol from the domain of the TwinCAT HMI server extension. This event will be called multiple times if RequestType equals RequestType_Subscription. In a subscription the returned data will only be sent to clients if either the read value or the return codes changed.

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