In the GDEVICE
Parameters window, the PROMPT parameter consists of
four fields that describe the type of prompt:
issues a message to
turn the device on (if the device is a hardcopy device) or the message
PLEASE PRESS RETURN AFTER EACH BELL TO CONTINUE.
signals, usually by
a bell, when the graph is complete (valid for video displays only).
issues a message to
mount pens in a certain order and (for certain devices only) to ask
for pen priming strokes for plotters.
prompts the user to
change the paper (valid for plotters only).
Enter an X for each
prompt that you want to be given. If no Xs appear in these fields,
no prompt messages are issued, and the device does not wait for you
to respond between graphs.