how to read usb barcode scanner in gambas.
i tried a sample code from this forum which shows the below error
my lsusb output shows the device details as follows

Get a USB barcode reader like this one. This reads the barcode and then passes the information back as if it is a keyboard, with an [Enter] at the end. This makes it very easy to program. All you need to do is have a TextBox in focus, scan the barcode and watch for the [Enter] at the end of the read, and you have got the barcode in your program.

Hi,

I run into this same problem a while ago.
First of all, forget SerialPort, it is way more simple (as Cogier already stated).
The  USB barcode scanner acts as keyboard input.

Make a form with a TextBox (let's call it tbxBarCode) and a Label (let's call it lblScannedBarCode)
Next apply following code on the Form

The Label is just to be able to have some code in the KeyPress event to demonstrate that the barcode is scanned.
I have an application that scans this code in a TextBox that is invisible (but keep in mind the TextBox does needs the focus upon scanning) and next, after scanning,  starts to give some info on the scanned article (like name, price etc.) retrieved from a database.

I guess you can take it from here, feel free to ask if you get into trouble.

Enjoy…

Hi
I tried this but getting unknown identifier tbxBarCode_KeyPress()

gbWilly said

Hi,

I run into this same problem a while ago.
First of all, forget SerialPort, it is way more simple (as Cogier already stated).
The  USB barcode scanner acts as keyboard input.

Make a form with a TextBox (let's call it tbxBarCode) and a Label (let's call it lblScannedBarCode)
Next apply following code on the Form

Code (gambas)

1. Form_Open()
2.  
3.   tbxBarCode.SetFocus
4.  
5. End
6.  
7. tbxBarCode_KeyPress()
8.  
9.   If Chr$(13) Then
10.     lblScannedBarCode.Text = tbxBarCode.Text
11.   Endif
12.  
13. End

The Label is just to be able to have some code in the KeyPress event to demonstrate that the barcode is scanned.
I have an application that scans this code in a TextBox that is invisible (but keep in mind the TextBox does needs the focus upon scanning) and next, after scanning,  starts to give some info on the scanned article (like name, price etc.) retrieved from a database.

I guess you can take it from here, feel free to ask if you get into trouble.

Enjoy…

I have altered gbWilly's code a little. This little program works well with my USB reader.