I need to build an application for Inventory taking in which I need to scan a barcode. The application will be installed in a
hand held scanner with LCD screen.
Once the item is scanned and the description pulled from the item description file, I need to allow the user to input the quantity.
Data collected must be saved in the local scanner memory and when finishing the inventory taking it must allow to export the stored data.
Does B4A could make use of some sort of bar code scanning library?
Does B4A allow to store data in the scanner memory for later export?
There are several barcode scanner libraries: https://www.b4x.com/android/forum/pages/results/?query=barcode+scanner
However, in the case of a device with built-in scanner, it is usually implemented as HID device and acts as a keyboard. In that case you can intercept it with an EditText which you handle its TextChanged event. There are also other options.
You need to check the specific device docs.
I seem to recall you can have it ask for a number of inputs, both scanner or keyboard, but it's been years since I messed with it.
You should follow the link I provided and check out their documentation.