interfacing with USB barcode scanner NOT as keyboard

Marc De Roover omnis1 at arcict.com
Wed Jun 17 14:28:06 EDT 2020


Ben,

That could be an idea but I prefer the “direct” way. I makes the 
situation less error prone imho.


Marc



On 14 Jun 2020, at 23:24, Ben Butler wrote:

> Hi Marc,
>
> What about scanning and saving image / meta info to file system and 
> then
> having an Omnis timer that reads the files within the save directory 
> and
> pulling them into Omnis / save in DB?  Presumably you will be using 
> some
> client ware that came with the scanner / does the clientware have an 
> Api
> you can use to drive the scanner?
>
> Kind regards
>
> Ben
>
> On Sun, 14 Jun 2020, 22:08 Marc De Roover, <omnis1 at arcict.com> wrote:
>
>> Dear All,
>>
>> Since I this topic seems to be raising some questions and second
>> thought, let me add some of the “why”
>>
>> Advantages of getting data straight from a USB device:
>>
>> - the app still can receive the data when being in the background, no
>> user-interface is needed
>> - the user can use another app in the front
>> - USB data can be used to trigger application behaviour ( ex: USB
>> “foot-switch” )
>> - most barcode readers can supply valuable information which allows 
>> to
>> differentiate the read barcode ( ex: not only the data but also: 
>> which
>> reader; type of barcode; checksum; different pre & trailing info per
>> barcode type; . . . ) data which is not or very difficult to handle 
>> when
>> receiving it as keyboard emulated input
>> - the application can also differentiate the origin of the “data” 
>> (
>> reader(s) vs keyboard )
>>
>> So for us plenty reasons to look into the possibility to get the data
>> straight for a USB device ( probably easier said then done :-( )
>>
>> Just to simplify our wishes; we can live with a Mac only solution 
>> :->)
>>
>>
>> Love the creative Postgres solution ;-)
>>
>>
>> Marc
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On 12 Jun 2020, at 19:13, Marc De Roover wrote:
>>
>>> Hello,
>>>
>>> Anybody any experience reading data from a connected USB barcode
>>> scanner which is NOT acting as a keyboard ?
>>>
>>> We need it for MacOS.
>>>
>>> Thanks in advance,
>>>
>>>
>>>
>>> Marc
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