Argox PA-20 Basic Programming Manual - Manual (Page 56)

PT-Basic Programming Manual Ver. 1.00 55/143
3.11 Keypad commands
CLR_KBD
Purpose： To clear the keypad buffer.
Syntax： CLR_KBD
Example： CLR_KBD
Description： This command will clear keypad buffer.
INKEY$
Purpose： To read one character from the keypad buffer then remove it.
Syntax： Str$ = INKEY$
Example： START:
S$=INKEY$
IF S$<>"" THEN
PRINT ASC(S$)
IF ASC(S$)=27 THEN „ESC key
END
END IF
END IF
GOTO START
…
Description： Str$ is a string variable to be assigned to character read.
INPUT_LEN
Purpose： To set or get input length when using “INPUT” or INPUT_S"
command.
Syntax： X%= INPUT_LEN
INPUT_LEN=A%
Example： INPUT_LEN=4
PRINT "INPUT STRING:"
A%=INPUT("",S$)
…
PRINT “Input length:”; INPUT_LEN
Description： A% is an integer variable. When using “INPUT” or
“INPUT_S” command, it can set limit on input length(When
N%=0 indicating not limit).
X% is an integer variable, indicating the input length.