VB - Seperate Barcode Scanner and Keyboard Input

[manmmadhok]

Hi there..!
I need some help.
I want to Scan some data in TextBox Field through Barcode Scanner on a particular action and needs to Disable keyboard Input for that action.
For some other action I want accept the keyboard input and disable the Barcode Scanning..

I know its tricky. but just in case if anybody happen to know the solution for this than please HELP...!

Cheers...!

Manish



Manish Madhok

 

[vanvb]

Don't know if this will help or not, but I have seen retail barcode programs where the barcode scanner needs to be programmed to send a '?' before the barcode. That is easy to set up for the scanner. In this way you could test the input to see if it is starting with a '?' and then clear it immediately if not...essentially not accepting it.
Good Luck!

 

[Nuqe]

hey manmmadhok
i just got my hands on a scanner and was wondering how you write the code to a txt box.

cheers NUQE

We all know about the "stupid user" don't we...

 

[Nuqe]

got it hehe damn that's cool

We all know about the "stupid user" don't we...

 

[Nuqe]

hey manmmadhok
i did some fooling around and there's a specific ascii value that is returned when a code is scanned. the one i'm working wiht is 13 so what you could do is

if keyascii

We all know about the "stupid user" don't we...

 

[Nuqe]

DAMMIT!!!

wrong button i clicked dicard the previous post... anyways
i did some fooling around and there's a specific ascii value that is returned when a code is scanned. the one i'm working wiht is 13
i found it out by

Private Sub Text1_KeyPress(KeyAscii As Integer)
Text1.Text = KeyAscii
End Sub


then when you have the ascii value of the scanner you could
have a check box indicating whether you want to use keyboard or the scanner.

ex.

if keyascii = 13 and chkScan.value = vbchecked then
(do what you want with the barcode)

else
discard the barcode
(do what you want with the keyboard entered data)
end if

i dunno if this helps at all hehe
good luck
CHeers NUQE



We all know about the "stupid user" don't we...

 

[IWarez]

Ascii 13 is a bad way to detect barcode data. 13 is also the enter key so a user entering data and finalizing data entry with enter would also trigger the barcode action. I suggest you program a prefix and a suffix. We at work always use chr(2) (STX) and chr(3) (ETX) for this.

 

[Nuqe]

If you have a check box to indicate whether you wan to use barcode data then ascii code 13 wouldn't really matter, but good point, i never thought of that.

NUQE

We all know about the "stupid user" don't we...

 

[IWarez]

You would not want a checkbox as a checkbox requires someone to set it. I personally would want an integration of the scanner without bothering for it. Just using the scanner when I want to is better then enabling a checkbox and scanning.

 

[Nuqe]

yup, i agree hehe i've never programmed for a scanner, and just tried one today... so i don't know anything haha. just a question if want to bother. How do you program a prefix and suffix for data that has been issued by the scanner??

NUQE

We all know about the "stupid user" don't we...

 

[IWarez]

Programming a prefix and suffix for a scanner is specific for each scanner. We have had a lot of scanner and each had different ways to program. You have to consult your scanner manual for that. You may also need to disable the default suffix (chr 13).

 

[Nuqe]

alrighty , i just grabbed a simple barcode wand... i'm not sure if it really has those options, meh, i learned soemthing today.

Hey, where do you think they guy we're supposed to be helping went hahaha

Cheers

NUQE

We all know about the "stupid user" don't we...

 

[IWarez]

Any decent scanner does have those options. What brand do you have?

 

[Nuqe]

Intermec sabre 1550


We all know about the "stupid user" don't we...

 

[IWarez]

According to what I can see in the manual a prefix and suffix should be no problem.

 

[Nuqe]

hmm, would it say how to set it??

We all know about the "stupid user" don't we...

 

[IWarez]

Yup, just look better Look for a part called Aux Prefix and Suffix selections. Anyway, going to sleep. See ya.

 

[Nuqe]

thanks... later

NUQE

We all know about the "stupid user" don't we...