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(elisp)Terminal Output

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Terminal Output
===============

   The terminal output functions send output to the terminal, or keep
track of output sent to the terminal.  The variable `baud-rate' tells
you what Emacs thinks is the output speed of the terminal.

 - Variable: baud-rate
     This variable's value is the output speed of the terminal, as far
     as Emacs knows.  Setting this variable does not change the speed
     of actual data transmission, but the value is used for
     calculations such as padding.  It also affects decisions about
     whether to scroll part of the screen or repaint--even when using a
     window system.  (We designed it this way despite the fact that a
     window system has no true "output speed", to give you a way to
     tune these decisions.)

     The value is measured in baud.

   If you are running across a network, and different parts of the
network work at different baud rates, the value returned by Emacs may be
different from the value used by your local terminal.  Some network
protocols communicate the local terminal speed to the remote machine, so
that Emacs and other programs can get the proper value, but others do
not.  If Emacs has the wrong value, it makes decisions that are less
than optimal.  To fix the problem, set `baud-rate'.

 - Function: baud-rate
     This obsolete function returns the value of the variable
     `baud-rate'.

 - Function: send-string-to-terminal string
     This function sends STRING to the terminal without alteration.
     Control characters in STRING have terminal-dependent effects.

     One use of this function is to define function keys on terminals
     that have downloadable function key definitions.  For example,
     this is how (on certain terminals) to define function key 4 to
     move forward four characters (by transmitting the characters `C-u
     C-f' to the computer):

          (send-string-to-terminal "\eF4\^U\^F")
               => nil

 - Command: open-termscript filename
     This function is used to open a "termscript file" that will record
     all the characters sent by Emacs to the terminal.  It returns
     `nil'.  Termscript files are useful for investigating problems
     where Emacs garbles the screen, problems that are due to incorrect
     Termcap entries or to undesirable settings of terminal options more
     often than to actual Emacs bugs.  Once you are certain which
     characters were actually output, you can determine reliably
     whether they correspond to the Termcap specifications in use.

     See also `open-dribble-file' in Note: Terminal Input.

          (open-termscript "../junk/termscript")
               => nil