I have a program. In my program have one text for input barcode. And i have keyboard and barcode reader.When i used barcode reader it will input in my textbox. But i don want someone press any key in my textbox. It's mean you can used barcode reader but you can not using keyboard to input. Can you help me out?
                                          Thank you for your reading.

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Please help out.

Hi

If uor using a wedge reader then I don't think its possible to work out where the input came from. However, you can do it by measuring the time it takes for the input to be entered. For example if the input takes longer than 1 second then reject it.
I've knocked up some code which should do it.

Option Explicit Private StartTimer As Double Private StopTimer As Double Private Sub Text1_GotFocus()     StartTimer = 0     Text1.Text = "" End Sub Private Sub Text1_KeyPress(KeyAscii As Integer)     If StartTimer = 0 Then         StartTimer = Now     End If          StopTimer = Now          Debug.Print StartTimer & " " & CDate(StartTimer) & " " & StopTimer & " " & CDate(StopTimer) End Sub Private Sub Text1_LostFocus()     If DateDiff("s", CDate(StartTimer), CDate(StopTimer)) > 1 Then              MsgBox "Too Slow"         Text1.SetFocus              Else              MsgBox "Ok"         Text1.SetFocus          End If End Sub

Steve  

[Edited by steve_w on 05-05-2005 at 08:00 AM GMT]

Hi,

There might be a other option, most scanners have the option to tell what type of barcode it is (code39 or code128 for example). If you turn it on in the scanner then the codes you will scan will always start with the code identifier, you could then put that in the source to ignore all other data if it not starts with the appropriate start characters. If the barcode would read 1234 then the scanner would send for example J11234, where the J1 stands for a certain type of code identifier.

I hope it might be of some use.

take care,
Anthony