Mode is a TModeType property that indicates the desired NNTP command mode for the client connection. Mode is used in the Connect method to set desired command mode, and results in an update to ModeResult indicated the server response to the request. 

When Mode contains the the value mtReader, the client connection is an NNTP newsreader that will use conversational NNTP protocol exchanges. mtReader cause the NNTP MODE READER command to be issued after establishing the connection to the server in Connect. 

When Mode contains the the value mtStream, the client connection wishes to suspend the conversational nature of NNTP, and send a stream of NNTP commands. mtStream is used with TakeThis, where articles are sent to an NNTP server in streaming mode. mtStream causes the NNTP MODE STREAM command to be issued after the connection to the server is opened in Connect. 

mtReader is the default value for Mode, as assigned in the Create constructor.

TModeType 

TModeSetResult 

ModeResult 

TakeThis 

Connect 

Create