How to trap Shift+Tab to select previous input field

[daryl]

Hi Folks,

I've been searching on how to trap the shift+tab key sequence to navigate to the previous text input field, but am unable to find anything on it.
Is there a message that can be trapped? Along these same lines, is it possible to chain messages together so they might share similar actions?

Any help would be much appreciated.

Thanks,

Daryl

[mwieder]

Well, it's *supposed to work, but doesn't. I'm sure it worked in a previous LC build, but I don't have one handy right now.
Here's what works for me (assuming that your fields are numbered sequentially and start with 1 - adjust the code accordingly)

Placed in the card script so that all the fields can use it:

Code: Select all

on rawKeyDown pKeyCode
    local tNewTarget
    
    -- 65056 is the keycode for the shift-tab combination
    -- discovered experimentally
    if pKeyCode is 65056 then
        put the number of the target -1 into tNewTarget
        if tNewTarget > 0 then
            focus on field tNewTarget
        end if
    end if
    pass rawKeyDown
end rawKeyDown

[bn]

Daryl,

you could set the autoTab property of the fields to true in the properties inspector. Then you can tab and shift-tab through the fields in the order of their layer number.

Kind regards
Bernd

[mwieder]

Bernd- that's the way it's *supposed* to work, yes. But tab does the right thing, while shift-tab doesn't work correctly irrespective of the the autoTab setting.

[bn]

Mark,

that's funny, I tried before posting: LC version 6.0.2 on Mac OSX 10.6.8

6 fields on a card and I could tab forward and shift-tab backwards.

????
Kind regards
Bernd

[mwieder]

@Bernd- Hmmm... I tried it, too. Both times before posting. LC 6.0.2-rc1 on linux. Interesting.

[mwieder]

OK - just tried it on OSX and autoTab works the way it should.