Receives incoming line without removing it from the buffer.

A String value.  

object.PeekLine ()

The PeekLine Method syntax has these parts:

PeekLine method will return full line of text if it exists in incoming buffer, but will not remove it from the buffer. wodTelnetDLX will remove end-of-line markers (CR/LF) so you don't need to trim this string by yourself. If no line is found, wodTelnetDLX will return error 30043 ("None found"), and will not wait for data to arrive.

To actually remove data from the incoming buffer, you should use Receive or ReceiveLine methods.