|OnReceiveData||published||Occurs one or more times while your request receives response data, and it indicates the current progress of the response download.|
|OnRequestCompleted||published||Event fired when a request finishes.|
|OnRequestError||published||Event fired when a request has an error.|
|OnRequestException||published||OnRequestException is called when a request execution raises an exception.
OnRequestException is a better alternative than the OnRequestError event because as an argument it receives an exception object.
When SynchronizeEvents is True, the OnRequestException is called in the context of the main thread; otherwise, it is called in the context of the calling thread.When OnRequestException is not assigned, then the TNetHTTPClient.OnRequestException is called. When both event handlers are not assigned, then an exception is raised.