The macro with-random-typeout
binds the variable
stream-variable
to a collector pane stream associated with
pane
for the scope of the macro. The collector pane is automatically mapped and unmapped around the body. If the body exits normally, the typeout is not unmapped until the space bar is pressed or the mouse is clicked.
CAPI User Guide and Reference Manual (Macintosh version) - 3 Aug 2017