Android Question bluetooth barcode scanner - how to trap tab key suffix

[cwt]

I am using a bluetooth scanner to input strings into an EditText view. The scanner is programmed to add a tab key as the suffix to the scanned string.

I need to trap the tab key, Chr(9), so I can process the data.

I am using a "TextChanged" sub for the EditText view as shown in the code below:

Sub Part_Number_TextChanged (Old As String, New As String)
    If New = "" Then
        Return
    End If
    Dim NewLen As Int
    New.ToUpperCase
    If New.EndsWith(Chr(9)) = True Then
        NewLen = New.IndexOf(Chr(9))
        Part_Number.Text = New.SubString2(0,NewLen)
        Part_Number.Text.Trim
        AddItem
    End If
End Sub

The code above is not seeing the tab key suffix - apparently only viewable ascii characters are trapped in the TextChanged sub.

How can I do this?

 

[Erel]

I'm pretty sure that any change in the text will raise this event. The problem is somewhere else.

As a test, monitor the text with a timer.