RequestListenerOnRequestAsync Event

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 Subscription.
In a subscription the returned data will only be sent to clients if either the read value or the return codes changed.

Namespace: TcHmiSrv.Core.Listeners
Assembly: TcHmiSrvExtNet.Core (in TcHmiSrvExtNet.Core.dll) Version: 3.1.7447.0+85f9b473a1dd11b8f3e5c9a182fd1901975e46f9

Syntax

public event Func<Object, OnRequestEventArgs, Task> OnRequestAsync