Programmer's Reference Manual Intermec Fingerprint® v8.70.0 ...

INKEY$
Chapter —Program Instructions
Purpose Function reading the first character in the receive buffer of the standard IN
channel.
Syntax INKEY$
Remarks For information on standard I/O channels, see SETSTDIO statement.
As opposed to the INPUT statement, INKEY$ does not interrupt the
program flow to wait for input data, unless a loop is created by means of a
GOTO statement, see line 20 in the example below.
INKEY$ is useful when the host computer is unable to end the input data
with a “Carriage Return” (CR; ASCII 13 dec.), but must use some other
character, for example “End of Text" (ETX; ASCII 3 dec.). Then a routine,
which interprets the substitute character as a carriage return, can be created.
Example In this example, none of the characters received on the standard IN channel
will be printed on the host screen until a # character (ASCII 35 decimal)
is encountered.
10 A$ = INKEY$
20 IF A$ = "" GOTO 10
30 IF A$ = CHR$(35) THEN PRINT B$
40 IF A$ = CHR$(35) THEN END
50 B$ = B$ + A$
60 GOTO 10
RUN
Type a number of characters on the keyboard of the host. They will not be
printed on the host screen until you type a # character. Then all the characters
will appear simultaneously, except for the #-sign.
Note the loop between line 10 and 20, which makes the program wait for
you to activate a key.
Intermec Fingerprint v8.70.0/v10.0.0 Programmer´s Reference Manual 1 7