Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Keywords
KEY/Trap Statement
KEY(number) action
Turns on, turns off, or temporarily halts key trapping for a spec-
ified key.
Action may be any
of the following:
ON enables key trapping
OFF disables key trapping
STOP temporarily suspends key trapping
Number may be a number in the range
1 to 20, indicating the
number of the key to trap. Function keys use their corresponding
function key number (1-10). The cursor direction key trap num-
bers are:
11
12
13
14
User-defined keys are 15-20. Use the following syntax
to define
your own user keys:
KEY number, CHR$(key) + CHR$(scan)
Key is one
of or a combination of the following:
&H40
[CAPSJ lock key
&H20
(NUMLOCK] key
&H08
(ALT) key
&H04
[CTRLJ key
&H02 Left key
&H01 Right key
Scan is the scan code for
a physical key on the keyboard.
See the appendices for a list of scan codes.
Notes:
Trapped keys do not go into the keyboard buffer.
0 Defining a function key or a cursor-direction key has no
effect.
BASIC considers them pre-defined.
192

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200