Specifications

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• Only a single bar code device file can be opened at a time. The total number of
files which can be opened at a time is 16 including data files and communications
device files.
• The BHT cannot open the bar code device file and the IrDA interface of the com-
munications device file concurrently. If you attempt to open them concurrently, a
run-time error will occur. The BHT can open the bar code device file and the
direct-connect interface concurrently.
• The name of the bar code device file,
BAR, may be in lowercase.
OPEN "bar:" AS #10 CODE "A"
• Alphabet letters to be used for readmode, beepercontrol, LEDcontrol
and readcode may be in lowercase.
• Up to eight readcodes can be specified.
• If you specify more than one condition for a same bar code type with read-
code
(s) ("I" in the example below), all of those conditions are valid. The sam-
ple below makes the BHT read both of the 6- and 10-digit ITF codes.
OPEN "BAR:" AS #1 CODE "I:6","I:10"
OPEN "BAR:" AS #1 CODE "I:6,10"
• BHT-100Q For a same 2D code type, you are allowed to specify conditions only
once with readcode. More than one specification will result in a run-time error.
• BHT-100Q
max.code.version for QR Codes and max.no.digits for
bar codes will be subject to the restriction of the BHT's scanning view.
• If you specify more than one
readcode including "I" (ITF), then ITF codes less
than 4 digits cannot be read unless numbers of digits are specified.
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readmode
The BHT supports four read modes--the momentary switching mode, the auto-
off mode, the alternate switching mode, and the continuous reading mode,
which can be selected by specifying M, F, A, and C to readmode, respectively.
Momentary switching mode (
M)
OPEN "BAR:M" AS #7 CODE "A"
Only while you hold down the trigger switch
*1
, the illumination LED
*2
lights and
the BHT can read a bar code.
If the bar code device file becomes closed when the trigger switch
*1
is held
down, the illumination LED will go off.
Until the entered bar code data is read out from the barcode buffer, pressing
the trigger switch
*1
cannot turn on the illumination LED
*2
so that the BHT can-
not read the next bar code.
*1
The trigger switch function is assigned to the magic keys.
*2
The illumination LED may not come on where the environment is bright enough for the BHT
to scan.