Apple IIe - Page 277

The
80-Column
Board
277
column
mode
will
be
redisplayed
in
the
leftmost
40
-
columns
of
the
80-column
display.
The
right
hand side
will
be
cleared.
The
following
four
commands
may also
be used
in
programs
to
change
the
display
mode
during
program
execution.
or
or
ESC
4
CONTROL-Q
ESC
8
CONTROL-R
Moving the Cursor
Select
40-column
mode
Select
80-column
mode
The
80-column
board
comes
equipped
with
numerous
editing
features. These features can be
implemented
through
the
use
of
the
ESC
and
CONTROL
keys.
When
using a
control
command,
the
CONTROL
key must be
held
down
before
another
key
is
pressed.
When
using an escape
command,
the
ESC
key must
be
pressed and released
before
another
key can be pressed.
The easiest
editing
keys
to
understand
are
undoubtedly
the
arrow
keys.
When
in
the
escape
mode,
these keys
allow
the
cursor
to
be
moved
across
the
display
field,
without
destroying
any
of
the
text
already displayed.
This
allows
the
user
to
edit
text
anywhere
on
the
screen. The escape
mode
is
entered
by pressing
the
ESC
key.
It
is
exited
by
pressing
the
space bar.
While
in
the
escape
mode,
the
cursor becomes an inverse
video
plus
sign.
While
in
the
escape
mode,
the
I,
J,
K,
and M keys
perform
the
same
function
as
the
up-arrow,
left-arrow
,
right-arrow,
and
down-arrow
keys,
respectively.
The
four
keys, A,
B,
C, and D may
also
be used
to
accomplish