Okay I modified Richmond's experiment to include a send mouseup to button 
"Single Undo" at the end of the first buttons script, and the field does indeed 
remain hidden, so yes a series of screen locks do stack. Pardon me for the 
false info.

Bob


On Sep 19, 2012, at 10:52 AM, Richmond wrote:

> Richmond had a genius moment :)
> 
> I made a wee stack called "LOCKER" with
> two buttons; "Triple-Play" and "Single Undo" and
> a fld "fff" containing the text "UNLOCKED!"
> 
> the script of btn "Triple-Play" goes like this:
> 
> on mouseUp
>   set the vis of fld "fff" to false
>    set the lockscreen to true
>    set the lockscreen to true
>    set the lockscreen to true
> end mouseUp
> 
> the script of btn "Single Undo" goes like this:
> 
> on mouseUp
>   set the lockscreen to false
>   if the lockscreen is false then
>     set the vis of fld "fff" to true
>   end if
> end mouseUp
> 
> HOT, SCREAMING STUFF!
> 
> so; click on btn "Triple-Play" which locks the screen THRICE,
> 
> then; click on btn "Single Undo" which unlocks the screen ONCE,
> 
> and,
> 
> "Bingo", "Kazoom", "Jumping Space Potatoes";
> 
> fld "fff" becomes visible.
> 
> Richmond.
> 
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