Hypertext Transfer Protocol Control Events  
 
Event Description
OnCancel This event occurs when a blocking operation is canceled.
OnCommand This event occurs when the server processes a command issued by the client.
OnConnect This event occurs when a connection is established.
OnDisconnect This event occurs when a connection is terminated.
OnError This event occurs when a control error occurs.
OnProgress This event occurs during data transfer.
OnRead This event occurs when data is available to be read.
OnRedirect This event occurs when the server indicates a resource has been moved.
OnTaskBegin This event occurs when a background task begins.
OnTaskEnd This event occurs when a background task completes.
OnTaskRun This event occurs while a background task is active.
OnTimeout This event occurs when a blocking operation times out.
OnWrite This event occurs when data can be written to the server.