I “improved” my script just to check that each time the handler is called it 
still gets its own local variables:

on oneOrTwo
   local tCount
   add 1 to tCount
   put "one" && tCount & return after Field "Field"
   wait 50 with messages
   put "two" && tCount & return after Field "Field"
end oneOrTwo

As you would expect, if you make tCount script local rather than handler local, 
it is “shared” between the “pseudo-simultaneously” running handlers.

Regards

Peter 


> On 23 Jan 2015, at 12:42, Peter W A Wood <peterwaw...@gmail.com> wrote:
> 
> Jacque
> 
> I believe that the engine can start processing the second call before the 
> first is finished after I did a little experiment:
> 
>       One card, button1, button2 and a field
> 
>       Both buttons with this script:
> 
>               on mouseUp
>                        oneOrTwo
>               end mouseUp
> 
>       A card script with 
> 
>               on oneOrTwo
>                       put "one" & return after Field "Field"
>                       wait 50 with messages
>                       put "two" & return after Field "Field"
>               end oneOrTwo
> 
> Clicking on the buttons in quick succession gives one, one, two, two.
> 
> I found out that you don’t even need two buttons. Hitting one button twice 
> quickly will give the same effect.
> 
> Regards
> 
> Peter
> 
>> On 23 Jan 2015, at 11:26, J. Landman Gay <jac...@hyperactivesw.com> wrote:
>> 
>> Suppose I have a long handler that includes a few "wait with messages" so 
>> that users can continue interacting with the stack while it runs. The user 
>> does something that calls the long handler while it is still running from a 
>> previous instance. Assume there is no flag in the script to prevent that.
>> 
>> Does the engine queue the second call until the long handler finishes, and 
>> then send the message from the second call (serial responses)?
>> 
>> Or does the engine run two instances of the long handler simultaneously? If 
>> so, what happens to the values of the variables?
>> 
>> Or something else?
>> 
>> I've never allowed this to happen before but I find myself in a position 
>> where simultaneous calls would be the best way to handle things.
>> 
>> -- 
>> Jacqueline Landman Gay         |     jac...@hyperactivesw.com
>> HyperActive Software           |     http://www.hyperactivesw.com
>> 
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