Apple IIe - Display Modes and Cursor Control

276 Apple lie Users Handbook
40-column mode (described later in this chapter). Remember, if
the cursor is solid and does not blink, then the 80-column board
is active.
To deactivate
the board , type the [escape] key, followed by
CONTROL-Q.
c ESC J (CoNTRoQ - Q
The screen
will revert to a 40 column display, and the blinking
checkerboard cursor will return at the bottom of the screen.
CONTROL-RESET
will also deactivate the 80-column board.
However, the user is advised against this technique. The use of
CONTROL-RESET while the 80-column board is active will
disrupt display, and may cause the erasure of any RAM-resident
programs.
Selecting 40 or 80 Columns While Board is Active
Occasionally, a 40-column display may be desirable. However, it
may not be desirable to forfeit the extra editing capability of the
Apple 80-column board. This dilemma may be resolved via the
use of the 40-column mode of the Apple 80-column text board.
In the 40-col.umn mode, the text board is active, although only 40
columns are displayed.
A switch
to the 40-column display can be accomplished by either
of two commands. Typing CONTROL-Q, while the board is
active will enable the 40-column mode. Notice that an escape
does
not precede the CONTROL-Q. Upon receipt of this
command, the computer will display any text which had pre-
viously been displayed in the leftmost 40-columns of the 80-
column display. The width of each character will be doubled.
Pressing the escape key, followed by pressing the 4 key, causes
identical results.
Either
CONTROL-R or escape,8 will return the display to the
80-column mode. Any text that had been displayed in the 40-