tkterm is a terminal emulator similar to xterm except that it can be used inside of a Tk script. Unlike xterm, you can query the tkterm to see what's on it and you can update the display manually if desired. tkterm is implemented by some clever Expect scripting that uses a Tk text widget. Tkterm support software such as vi, emacs, or character-graphic program built using curses, termcap, or terminfo. Tkterm's most recent enhancement is to provide scrollbars while in 'dumb' mode [L1 ].
Bruce Stephens updated it to his "Pterm".