I belong to those that learn by trying and failing.
I have therefore taken up the task to write my own terminal emulator.
The project, should it ever come to life, will be a replica of the VanDyke SecureCRT.

It should support both Telnet & SSH protocols, and if things go well, perhaps more.
At the moment I am working on the easiest of them, the Telnet.

The application is an MFC MDI and here is where I need your advice.
How would it be best to structure it?

• Create one Document Template for each protocol?
  This seems a terrible waste, since most of the code will be the same.

• Should everything be done in the Document class?
  And have the View only for display?

• Or have the View do all the work of connecting, reading user input and displaying server output?

• Should there be two Views? One for each protocol?
  As far as I can understand, this is not something done easily
  and the best way to do it, brings me back to the two Document Templates scenario.

I have written a working command line telnet client and
at the moment I’ve reached the point where I need to decide how to proceed with the windows one.

Thanks in advance for your help and advice.