Thanks Kerry - that is a very helpful reply.

I do have quite a few other keyboard shortcuts and mouse controls but I
understand the ease of using the Tab key to toggle between buttons. I
recently completed a game for a large organisation and the tab functionality
was a must for the accessibility requirements. I think it is probably safer
to remove the in game tab and shift tab controls or replace with alternative
key shortcuts.

Out of interest, do you think the user should be able to tab between each
"square" on the crossword?

A-Z: Enter the typed letter into the square 
Space bar: Change between Across and Down 
Del: Clear the selected square 
Backspace: Clear the selected square (or previous if square is empty) 
Arrow keys: Select the neighbouring square 
Tab: Select the next word 
Shift+Tab: Select the previous word 
Home: Select the 1st square in the selected word 
End: Select the last square in the selected word

Click on an unselected square: Select the square clicked on
Click on the selected square: Change between Across and Down
Click on a clue: Select the corresponding word

Thanks

Paul



-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Kerry
Thompson
Sent: 22 May 2009 16:47
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Using Tab key as a game control

Paul Steven wrote:

> Is it a bad idea to use the "Tab" key as a game control. Basically in a
> crossword game I am creating, I was going to use "TAB" to move to the next
> word and "SHIFT TAB" to move to the previous word. I notice however that
> when I press the TAB key all the buttons on my game screen are appearing
> with yellow boxes around them. I assume this is some kind of accessibility
> thing?

Yes, it is an accessibility issue. People with compromised muscle control
use the tab key to navigate to buttons, URLs, etc. 

I've built accessible programs a lot in the past, and I've disabled the
auto-tab feature. The programs I've written have been tailored to work with
specific hardware tools like switches and programmable flat-panel keyboard
substitutes.

If you're not building alternate accessibility features, though, you might
be in a bind. Tab is the way most people navigate crosswords, but I've done
crossword games where you can click on the clue or in a blank space in the
puzzle.

On the other hand, you might be able to get away with disabling Tab. There
are other Web tools, like Shockwave, that don't implement Tab for
accessibility. However, I'm not an expert on current accessibility
requirements. I would recommend you find out more about what the law (and
your client) require. Others on this list, and on Flash Tiger, can probably
help you with that.

Cordially,

Kerry Thompson

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