Textfield KeyDown

General
1

Hi,

I have a Textfield and i want it to accept only Digits 0-9, Backslash, Delete, Tab, Right and Left Key. How to handle this?
[h]Sample[/h]

Select Case Key Case Chr(8) Return False Else Return True End Select
Won’t work!

2

[code]Event KeyDown(key As String) As Boolean
Const LOWEST_DIGIT = 48
Const HIGHEST_DIGIT = 48
Const BACK_SLASH = 92
Const DELETE = 127
Const TAB = 9
Const LEFT = 28
Const RIGHT = 29

Select Case Asc(key)
Case LOWEST_DIGIT To HIGHEST_DIGIT, BACK_SLASH, DELETE, TAB, LEFT, RIGHT
Return False
Else
Beep()
Return True
End
End[/code]
The keycode constants depend on the OS and the language settings of its user.

3

Cool Eli Ott. And there is no way to do have Platform Independent Solution?

4

All printable characters are cross-platform. I don’t know about arrow keys and the like.

5

In Xojo, AFAIK arrow keys are cross platform between Mac and Windows. Probably Linux as well.

6